----

|   | 1.1 | AGREEMENT. | This                Agreement and the appended Attachments and all revisions made hereto                and                thereto. |
|--------|-----|------------|-------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.2 | AIRCRAFT.                The CRJ-200                aircraft owned or operated by Northwest, as shown in Attachment A,                on                which Eligible Engines are installed. |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.3 | AIRWORTHINESS                DIRECTIVE (“AD”).  Legally                enforceable rules issued by the Aviation  Authority, which                specify mandatory required inspections, modifications or operations                of                affected Engines. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.4 | AVIATION                AUTHORITY OR AVIATION AUTHORITIES.  The United States                Federal Aviation Administration (“FAA”) or any                other                United States regulatory body that may perform the functions of the                FAA in                the future, and/or Transport Canada (“TC”). |
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|   | 1.5 | BEYOND                ECONOMIC                REPAIRor BER.                   For purposes of this Agreement, there shall be no                BER of an Engine or LRU during a Shop Visit.  Any Engine or LRU                deemed by VENDOR to be BER, will be replaced with another engine                or LRU of                a configuration, LLP life, total times and cycles that are substantially                similar or better than the Engine which is BER, had such Engine or                LRU                completed a Shop Visit.  Northwest will retain the right to                approve or reject any Engine or LRU replaced under this Agreement. |
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|   | 1.6 | BILL                OF MATERIAL OBJECT                DAMAGEor                BMOD.  Damage to an engine resulting from the failure of                a part that is listed in the bill of material for such engine. |
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|   | 1.7 | CUSTOMIZED                ENGINE MAINTENANCE PROGRAMor CEMP.The                Northwest                program for off-wing maintenance by VENDOR and Northwest for the                EHRP                Eligible Engines as set forth in Attachment B.  The CEMP will                become part of the Northwest approved continuous airworthiness maintenance                program used to perform all inspections, overhaul, repair, modification,                preservation, replacement of parts and preventative maintenance on                an                Engine or LRU a set forth, without limitation, in the applicable                manufacturer’s inspection and repair manuals, supplemented by Northwest’s                supplemental pages, ADs, Northwest Engineering Orders, and any Northwest                VENDOR shop practices manual (if published). |
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|   | 1.9 | ELIGIBLE                ENGINESor ENGINES.  General                Electric CF34-3B1 engines operated by Northwest which are identified                in                Attachment A by engine serial number and either installed on CRJ-200                Aircraft or used as spare engines on such Aircraft.  Attachment                A may be updated from time-to-time as Aircraft and Eligible Engines                are                added to or removed from the Northwest operated CRJ-200 fleet. |
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|   | 1.10 | ENGINE                FLIGHT CYCLE –                Shall be as defined in Chapter 5 of the General Electric Aircraft                Engines                CF34-3B1 Manual SEI-756. |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1,11 | ENGINE                FLIGHT HOUR -                Shall mean each airborne hour (or part thereof) in operation of each                engine computed from the time an aircraft leaves the ground until                it                touches the ground at the end of a flight. |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.12 | ENGINEERING                ORDERor                EO.  A modification or inspection to a component as                approved in writing by Northwest Engineering. |
|--------|------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.14 | FAA.  Federal                Aviation Administration of the United States of America or any successor                agency thereto. |
|--------|------|------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.15 | ENGINE                HOURLY RATE (“EHR”).  The                rates per EHR Eligible Engine flight hours for the applicable calendar                years set forth in the EHR table in Attachment C for the Services                described in Section 2.6. |
|--------|------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.16 | ENGINE                HOURLY RATE PROGRAM (“EHRP”).  The                provision by VENDOR to Northwest of the Services pursuant to the                provisions of this Agreement. |
|--------|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.17 | FOREIGN                OBJECT DAMAGE (“FOD”).  Damage                to any portion of an engine caused by impact with, or ingestion of,                birds,                hail or other natural causes or man-made debris. |
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|   | 1.18 | HEAVY                MAINTENANCE SHOP                VISIT. An                Engine shop                visit characterized by extensive                shop                visit work scopes such as work scopes requiring dismantle of the                Engine                forward of the combustion chamber frame or aft of the number 3 carbon                seal, work scopes requiring multiple module swaps, and those identified                as                the anticipated 22,000 / 25,000 cycle LLP visit. |
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|   | 1.19 | LIFE                LIMITED PARTS (“LLPs”).  Engine                parts with an approved limitation on use in cumulative hours or                cycles  as defined in the Airworthiness Limitation section of                the applicable Production Approval Holders engine manual. |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.20 | LINE                REPLACEABLE UNIT                (“LRU”).  Line                replaceable unit/engine accessory as listed in Attachment C. |
|--------|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.21 | MISCELLANEOUS                SHOP VISIT.  A shop visit to correct a specific problem                that does not constitute a Heavy Maintenance Shop Visit as defined                in the                CEMP in Attachment B. |
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|   | 1.22 | MODULE                EXCHANGE. As defined in the CEMP in Attachment B. |
|--------|------|-------------------------------------------------------------------------|

|   | 1.23 | OPERATOR.  Shall                mean Pinnacle Airlines Inc., Mesaba Airlines, Inc., Compass Airlines,                Inc. |
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|   | 1.24 | PARTS                MANUFACTURER APPROVAL (“PMA”).                 Authority granted                to a person by the FAA to manufacture airworthy products as described                in                Subpart K of 14 CFR 21. |
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|   | 1.25 | PRODUCTION                APPROVAL HOLDER (“PAH”).   General                Electric Aircraft Engines. |
|--------|------|-----------------------------------------------------------------------------------------------------------------------------------|

|   | 1.26 | PROGRAM                MANAGER.   The VENDOR appointed manager of                Northwest’s EHRP. |
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|   | 1.27 | QUICK                ENGINE CHANGE (“QEC”)KIT.                The parts and                assemblies that make up the quick engine change assembly identified                by                Bombardier part numbers 228-59000-813 (neutral QEC kit), 228-59001-814                (left handed QEC kit), or 228-59002-813 (right handed QEC kit). |
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|   | 1.28 | REPAIR                ORDER or SERVICE                ORDER.  Any document, and amendments thereto, issued by                Northwest to convey specific work instructions pursuant to this Agreement                required to return an Engine or LRU to Serviceable condition. |
|--------|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.30 | INTENTIONALLY                LEFT                BLANK |
|--------|------|--------------------------------------------------------|

|   | 1.31 | SHOP                VISIT.  Shall be as defined in the CEMP in Attachment B. |
|--------|------|----------------------------------------------------------------------------------------|

|   | 1.32 | SPECIFIC                CONDITIONS.                means the                Fleet Management Specific Conditions described in Attachment C upon                which                the EHRP Rates are predicated. |
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|   | 1.33 | TECHNICAL                CONDITION ACCEPTANCES.  Items of technical data which are                approved by the FAA or FAA accepted procedures, such as internal                engineering notices, engineering authorizations, source demonstrated                repairs and technical work packages. |
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|   | 1.34 | TRANSPORTATION                RATE.  The rate per Eligible Engine flight hour                applicable to all transportation services provided for Eligible Engines                and their modules by VENDOR under this Agreement. |
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|   | 1.35 | VENDOR                SPARE ENGINES.  Any                serviceable spare engines, which may include engine accessories,                EBU or                QEC, and BFE, provided to Northwest pursuant to the terms and conditions                set forth in Sections 4 and 7. |
|--------|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.37 | TRANSPORT                CANADA.  Same definition as that used for the FAA, only                applicable to Canada. |
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|   | 2.1 | The                Services shall be performed on Engines and LRUs in accordance with                the                CEMP. VENDOR certifies that it is the holder of a FAA Repair Station                Certificate or an Approved Maintenance Organization under Transport                Canada. VENDOR shall provide documentation to Northwest for each                repair                station performing work pursuant to this Agreement, to include the                repair                station Number, Address, City, State and Country prior to commencement                of                Services at such repair station. VENDOR shall not utilize the services                of                any other repair station in the performance of Services without the                prior                written approval of Northwest. |
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|   | 2.2 | All                Services rendered by VENDOR for Northwest under this Agreement shall                be                initiated by Northwest’s issuance of its Repair or Service Order to                VENDOR.  All Services shall be solely pursuant to (a) this                Agreement, (b) the Attachments, schedules and other documents incorporated                herein by specific reference and (c) the terms including the types,                revision level, acceptable quality level, Northwest or manufacture’s part                number, quantities, special packaging instructions, delivery dates                and                delivery destinations set forth in the Repair or Service Orders. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.4.1 | Program                Management.  The Program Manager shall act as manager of                this EHRP and be the principal contact person from VENDOR for                Northwest.  Northwest shall appoint a program coordinator (the                “Program Coordinator”) who shall act as manager of this EHRP and be the                principal contact person from Northwest.  The Program Manager                and the Program Coordinator shall work together to analyze EHRP Eligible                Engine and module performance to identify Northwest’s maintenance                requirements and schedule engine maintenance and removal in a manner                consistent with the Customized Engine Maintenance Program and Northwest’s                operational requirements.  The Program Manager shall also                coordinate any additional support required hereunder to assist Northwest                with troubleshooting and problem resolution including but not limited                to: |
|--------|-------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| a)   | Providing                on a quarterly basis, at a minimum, an Estimated Removal Schedule                (“ERS”)                of Engines to be sent to VENDOR by their ESN for Services to be performed                hereunder.  The ERS shall identify Engines by their serial                number planned to be removed from the aircraft during the current                calendar                year and the general work scope to be performed on such                Engines.  The ERS may also include an updated engine removal                forecast for the next calendar year if deemed necessary by both Parties.                VENDOR shall use its best efforts with respect to the accuracy and                completeness of the data contained in the                ERS. |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b)   | Defining                the Services to be accomplished at each Shop                Visit. |
|----------------|--------------------------------------------------------------------------------------------|

|   | c) | Defining                with Northwest, any additional Services that may not be included                in the                EHRP Rate, to be performed under the Agreement. |
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|   | d) | Maintaining                the necessary liaison between VENDOR and Northwest. |
|--------|----|--------------------------------------------------------------------------------|

|   | e) | Providing                Northwest authorized personnel with reasonable access to Engines                when such                Engines are in the possession of VENDOR, and access to the maintenance                records related to such Engines. |
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| f)   | Initiating                promptly all routine correspondence from VENDOR to Northwest relative                to                the administration of this                Agreement. |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| g)   | Providing                interface with Northwest engineering department as                required. |
|----------------|------------------------------------------------------------------------------------------------------|

| h)   | Providing                Northwest a complete set of organization charts and updates for VENDOR                pursuant to this Agreement. |
|----------------|--------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.4.2 | The                Program Manager will work with the Program Coordinator to keep the                ERS                current taking into consideration all Northwest and VENDOR capacity,                operational requirements, and other influencing factors. The Program                Manager will provide a written recommendation for removal of specific                ESN                with a minimum two (2) weeks notice to Northwest. Northwest will                make all                reasonable efforts to plan the engine removal for the date required.                If                Northwest is unable to remove an Engine when it is scheduled, the                Program                Manager and the Program Coordinator will work together to agree on                a                revised removal schedule within a reasonable timeframe so as to maintain                and minimize the impact to the overall removal schedule, and not                adversely                impact Northwest operations. Northwest recognizes that if it continually                requests deviations from the ERS and recommendations issued by the                Program                Manager, such deviations could have an adverse impact on VENDOR’s ability                to satisfy Minimum Spares Quantity commitments set forth in Section                4.0                hereunder, therefore, Northwest shall assist VENDOR and Operator(s)                in                resolving any adverse impacts caused by such deviations. |
|--------|-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.4.3 | Engineering                Services.                VENDOR shall provide the following Engineering                Services: |
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|   | a) | Analyze                ADs and/or Service Bulletins to determine those which are applicable                to                Northwest Engines. |
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|   | c) | Provide                appropriate documentation and reports in conjunction with requirements                in                Section 2.2. |
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|   | d) | Provide                written reports stating any damage detected and repairs accomplished,                including any technical conclusion as to the cause of such damage. |
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|   | e) | Analyze                jointly with Northwest ECM and recommend Engine removals based on                analyzed                results. |
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|   | 2.4.4 | Quarterly                Business Reviews. VENDOR shall establish a Quarterly Business Review                process with Northwest, whereby both Parties along with the Operators                shall meet to review commercial and technical performance metrics,                issues                and corrective actions and action plans associated with Services                performed                under this Agreement. The locations of such reviews shall alternate                equally between VENDOR and Northwest locations throughout the term                of the                Agreement. |
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|   | 2.5 | Field                Service                Support.  The following Field Service Support will be                made available by VENDOR: |
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| 2.5.1   | For                Services to be performed on-site, VENDOR will have access to a pool                of                skilled technical personnel fully approved and available upon Northwest                request with reasonable notice.  The Field Service support will                be provided to Northwest at no charge or additional cost, based on                the                type of Services requested as shown in Exhibit C.  Should such                Services involve additional cost, the charges will be as set forth                in                Attachment C. |
|-------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.5.2   | To                request Field Service Support, Northwest will contact VENDOR’s Program                Manager and provide the following                information: |
|-------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| a)   | Type                of requested Service |
|----------------|------------------------------------------|

| b)   | ESN |
|----------------|-----|

| c)   | Location                of Engine |
|----------------|-----------------------------------|

| d)   | Time-period                for such Service performance |
|----------------|---------------------------------------------------------|

| e)   | Corresponding                Purchase Order |
|----------------|---------------------------------------------|

| f)   | Point                of Contact |
|----------------|---------------------------------|

| 2.5.3   | VENDOR,                in conjunction with Field Service Support provided in this Section                2.5,                shall provide appropriate FAA documentation stating that the Services                have                been performed in accordance with the Northwest FAA approved maintenance                program.  Further, Northwest shall prepare the Engine in such a                way as to permit immediate access by VENDOR to the areas of the Engine                requiring such Services. |
|-------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.5.4   | Northwest                shall provide training to appropriate VENDOR personnel on its specific                maintenance program requirements procedures necessary to work on                Engines                covered under this Agreement. |
|-------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.6 | Engine                Condition                Monitoring |
|--------|-----|-----------------------------------------------------------|

|   | 2.8.1 | While                the EHRP Eligible Engines                are in its possession, Northwest shall maintain records on the accumulated                hours and cycles for all Life Limited parts and tracked parts identified                in the log books, as well as other parts                that VENDOR may specify as                a result of an Airworthiness Directive or a PAH Alert Service Bulletin                requirement.  As maintenance is performed on each EHRP Eligible                Engine over time, additional detailed records concerning the work                performed shall be kept.  All records of the performance of                maintenance tasks that are required by the applicable Aviation Authority                shall be generated and maintained  (i) by VENDOR or its designated                maintenance provider in the case of the off-wing maintenance, and                 (ii) by Northwest in the case of line maintenance.  The party                generating and maintaining records shall make such records available                to                the other party in order to ensure compliance with the requirements                of                this Agreement and the applicable Aviation Authority.  Records shall                be in the English language and shall include EHRP Eligible Engine                maintenance records, configuration records, EHRP Eligible Engine                test cell                data (as applicable) and FAA Form 337 or other applicable Aviation                Authority approved documents.  Following each off-wing maintenance                visit, VENDOR or its designated maintenance provider shall provide                a                report identifying the service bulletins incorporated during that                shop                visit.  VENDOR shall provide technical support and assistance as                necessary for records and maintained.  The “Advance Documentation,”                shall be per paragraph 4.3 of Attachment                B.  |
|--------|-------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | a) | FAA                Form 8130-3 Authorized                Release Certificate or TC Form 24-0078 Authorized Release Certificate,                or                equivalent. |
|--------|----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | c) | Airworthiness                Directives                Compliance Report, ALS (“Airworthiness Limitation                Sections”) |
|--------|----|------------------------------------------------------------------------------------------------------------------------------------------------|

|   | e) | Major                Component Change Record for                Life Limited parts and other tracked and serialized                parts |
|--------|----|------------------------------------------------------------------------------------------------------------------------------------------|

|   | g) | Final                Engineering Report,                including engine test cell data (as                applicable) |
|--------|----|------------------------------------------------------------------------------------------------------------------------|

|   | h) | In                addition, VENDOR shall provide Service Difficulty reports to Northwest                and                the applicable aviation authorities documenting any other failure,                malfunction, or defect in the engine, modules or components that                occurs or                is detected at any time if, in its opinion, that failure, malfunction,                or                defect has endangered or may endanger the safe operation of the aircraft                in accordance with FAR 121.703, FAR 145.221 and CAR 591 of the Canadian                Aviation Regulations |
|--------|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | i) | Status                of work performed on major modules. |
|--------|----|-----------------------------------------------------------|

|   | j) | Operator                specific action authorizations |
|--------|----|--------------------------------------------------------|

|   | k) | Status                of repetitive inspections |
|--------|----|-------------------------------------------------|

|   | 2.8.2 | VENDOR                shall maintain copies of records for all work performed under this                Agreement, in accordance with the requirements set forth in the Operator’s                FAA approved maintenance program. |
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|   | 2.9 | Elements                of Off-wing                Maintenance included in the                EHRP. |
|--------|-----|-----------------------------------------------------------------------------------------------------|

|   | 2.10 | Elements                of Off-wing                Maintenance not included in the                EHRP |
|--------|------|--------------------------------------------------------------------------------------------------------|

|   | 2.10.1 | The                following elements of off-wing maintenance will be provided but are                not                covered by the EHR. VENDOR will charge Northwest for providing such                Services at the VENDOR Rates provided in Attachment C of this Agreement,                with the labor rate adjusted in accordance with the adjustment formula                set                forth therein. Neither VENDOR nor Northwest shall purposely engage                in any                activity intended to result in Excluded Cause shop visits as defined                in                Section 2.10.2. |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.10.2 | Shop                visits, and/or specific maintenance tasks during a shop visit resulting                from one or more of the following Excluded Causes; (i) Northwest’s                negligence or accident, (ii) the hostile act of any person (excluding                employees of VENDOR acting in the capacity of their                employment),  (iii) operation outside the engine operating                limits established by the equipment Production Approval Holder as                a result                of Northwest’s error,  (iv) maintenance performed by Northwest                that is not in accordance with its FAA approved maintenance program,                (v)                Foreign Object Damage (subject to Section 13), and (vi) acts of God                (including, but not limited to, fire, flood, volcanic eruption, and                sand                storm). |
|--------|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.10.2.1 | For                any EHRP Eligible Engine on which VENDOR performs an Excluded Cause                Shop                Visit, VENDOR shall invoice Northwest on a time and material basis                as set                forth in Attachment C for such Services, less any time and material                charges that would be considered as normal refurbishment, adjusted                on a                pro-rata basis, based on expected normal life between Shop Visits. |
|--------|----------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.10.2.2 | In                addition, the following calculation shall be performed to determine                if the                Excluded Cause Shop Visit results in a reduction to costs expected                to be                incurred against such Engine during the remainder of the Term of                the                Agreement: |
|--------|----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| a)   | determine,                by mutual agreement of the Parties, any changes to the originally                assumed                a) timing, b) volume and c) expected Shop Visit cost for such Engine                during the remainder of the Term (collectively referred to as “Expected                Future Cost Contribution”) as a result of the Excluded Cause Shop                Visit. |
|----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b)   | if                there is a net reduction in Expected Future Cost Contribution for                such                Engine as a result of changes determined from a), above, then VENDOR                shall                provide a credit for the difference between the                original  Expected Future Cost Contribution and the revised                Expected Future Cost Contribution of that Engine after the Excluded                Cause                Shop Visit. |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.10.2.3 | With                respect to maintenance performed due to an Excluded Cause Shop Visit,                the                time and material work scope shall be performed in accordance with                the                CEMP. |
|--------|----------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.10.3 | Actions                to comply with any airframe manufacturer service bulletins or airframe                Airworthiness Directives. |
|--------|----------------------------------------------------------------------------------------------------------------------------------------|

| 2.10.4 | Replacement                of parts found to be missing upon the receipt of a EHRP Eligible                Engine                for maintenance at a VENDOR facility (or other facility designated                by                VENDOR). Northwest, at its option, may provide such replacement parts                provided that Northwest’s provisioning of such parts does not adversely                impact VENDOR’s planned EHRP Eligible Engine ship date. |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.10.5   | Upon                removal of an Engine for Services under this Agreement, Northwest                may                elect to remove one or more LRUs prior to shipment of the Engine                to VENDOR                for its operational convenience except for LRUs specified in Section                9.5                of Attachment B.  Northwest shall not replace the removed LRUs                and instead provide detail what has been removed as part of the                documentation package that accompanies the Engine upon shipment to                VENDOR.  VENDOR will perform the necessary Services under this                Agreement and return the Engine to Northwest, without the same LRUs                that                were missing when the Engine was originally shipped to VENDOR and                documented as such.  LRUs that must be returned to VENDOR with                each Engine are identified in the                CEMP. |
|--------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.10.6   | Transportation                services, unless Northwest exercises the option to have VENDOR provide                such services per the rates as specified in Section 3.6 of Attachment                C. |
|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.10.7   | Repair                of LRUs or fan blades that are removed in a line maintenance environment                by Northwest.  Pricing for such additional services is provided                in Sections 3.3 and 3.4 of Attachment                C. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.10.8   | Field                Services not covered as no charge under the EHR or as specified in                Exhibit                C. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------|

|   | 2.11 | In                the event VENDOR is unable to provide the Services to Northwest in                accordance with the terms and conditions of this Agreement, VENDOR                shall                procure Services from Northwest approved sources so as to ensure                uninterrupted supply to Northwest at no additional cost; provided,                however, if VENDOR is unable to ensure uninterrupted supply at no                additional cost to Northwest despite VENDOR’s best efforts, then Northwest                may, at its option, obtain the Services from any other source and                any                reasonable costs or expenses incurred by Northwest, under the                circumstances at that time, as a result of using such other source                shall                be paid by VENDOR. |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.12 | VENDOR                shall deliver the Engines or LRUs in accordance with the terms and                conditions of this Agreement and the CEMP. If there is any dispute                relative to interpretation of any portion of CEMP, the Parties including                the Operators shall forthwith meet to resolve the matter amicably                but if                the Parties are unable to reach a resolution, Northwest’s interpretation                shall prevail.  Operator may elect to proceed with its own                interpretation of the CEMP, and any incremental costs to the EHRP                will be                payable by the Operator. |
|--------|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.13 | Except                as otherwise set forth herein, this Agreement shall supersede and                replace                Northwest’s Repair or Service Order terms and conditions and VENDOR’s                acknowledgment documents. |
|--------|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| SECTION                3.0: | BUILD                STANDARD |
|-----------------------------|-------------------------------|

| 3.1   | Work                shall be performed in accordance with CEMP as may be                amended.  Operator or Northwest requested changes to the CEMP                will be made only after mutual agreement between the Parties with                respect                to any technical or commercial impacts to the                Agreement.   Any PAH requested or required changes issued                via approved technical data to Operator, or VENDOR requested or required                changes, either of which result in a change to the CEMP, shall be                made                only after mutual agreement between the Parties, with such changes                being                made at no additional cost to the Operator or                Northwest. |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.2 | The                build standard or specification for Services performed by VENDOR                on each                Eligible Engine or LRU under this Agreement, will be compliant with                the                requirement that such Services will cause the Eligible Engine to                perform                on-wing in a manner which allows it to reach its next scheduled removal                for off-wing maintenance. VENDOR shall utilize the standards set                forth in                the CEMP for all Eligible Engines going through a Shop Visit throughout                the Term of this Agreement, including the last visit of each Eligible                Engine, based on what is due for each specific Engine at the specific                scheduled visit. |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.3 | At                the end of the Term of this Agreement, each Eligible Engine shall                be                compliant with the Minimum Cycle Conditions as set forth in Attachment                F.                Any Eligible Engine that fails to meet this requirement shall be                returned                to VENDOR for accomplishment of Services required to bring the discrepant                Eligible Engine up to the minimum, end of Agreement Term conditions                specified. |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 5.1 | Historical                TAT on Program Shop Visits will be reviewed and analyzed at Quarterly                Business Reviews and will form the basis for operational performance                management discussions only. This program will be managed to the                following                turnaround time (TAT) objectives: |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 5.1.3 | The                TAT for a Heavy Maintenance Shop Visit [***] days. |
|--------|-------|-----------------------------------------------------------------------|

|   | 5.1.4 | The                TAT for repair work scopes not identified above – [***] to [***] days                depending on the detailed work scope. |
|--------|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 5.2 | Except                as set forth herein, measurement of TAT shall commence upon the receipt                of                a EHRP Eligible Engine by VENDOR on dock, at its designated maintenance                facility. Measurement of TAT shall end on the calendar day on which                the                EHRP Eligible Engine is ready for delivery from the VENDOR designated                maintenance facility, to Northwest. Total TAT achieved for each Engine                or                LRU shall exclude any delays resulting from work scope approvals                by                Northwest, late or missing Northwest provided documentation, missing                LRUs                as identified in the CEMP required for Engine performance guarantees,                or                any investigative actions required, where VENDOR cannot utilize alternate                processes, parts or repairs to mitigate such delays. |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 6.1.1 | VENDOR                shall provide Northwest with the In-flight Shutdown Guarantee as                described                in Attachment E. |
|--------|-------|-------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 6.2 | Interstage                Turbine Temperature (“ITT”) Guarantee |
|--------|-----|-----------------------------------------------------------------------------|

|   | 6.2.2 | VENDOR                shall provide Northwest with the Interstage Turbine Temperature Guarantee                as described in Attachment E. |
|--------|-------|----------------------------------------------------------------------------------------------------------------------------------------------|

|   | 6.3.1 | VENDOR                shall provide Northwest with the Module Exchange Shop Visit Reliability                Guarantee Plan as described in Attachment E. |
|--------|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 7.1 | Title. Parts                and material                incorporated into Engines and LRUs as required in performing Services                on                Northwest Engines and LRUs hereunder, shall be deemed to have been                sold to                Northwest, and title to such parts and material thereon shall pass                to                Northwest upon delivery of the Engine or LRU embodying such items,                to                Northwest.  Risk of loss or damage of an Engine or LRU shall                pass to Northwest upon delivery to Northwest of the Engine or                LRU.  Title to and risk of loss or damage to any parts removed                from Northwest Engines or LRUs, which are replaced by other parts,                shall                pass to VENDOR upon removal of such parts from Northwest’s Engines or                LRUs. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   |  7.2.1 | On                or before November 15, 2007, Northwest may elect to have VENDOR arrange                and pay for the round trip transportation costs, including all customs                brokerage and clearance fees, for the removed/repaired EHRP Eligible                Engines or related modules to and from VENDOR’s designated facility(ies)                Delivery Duty Paid (“DDP”) Northwest.  Upon such notification,                Northwest will pay the Transportation Rate as set forth in Attachment                C,                effective September 1, 2007.   Risk of loss or damage shall                remain with Northwest at all times during round trip                transportation.  Should Northwest elect not to have VENDOR                provide transportation services in accordance with this Section either                by                formal notification of such decision or by default with no notification                by                November 15, 2007, transportation responsibility shall be as per                Section                7.2.2 and 7.2.3 below, and VENDOR shall invoice Northwest for                transportation costs incurred for movement of any Engines under this                Agreement, from the Effective Date until notification by Northwest                or                November 15, 2007, whichever is earlier. |
|--------|-------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 7.2.2   | Should                Northwest not elect to have VENDOR provide transportation services                in                accordance with Section 7.2.1,  Northwest shall arrange for, and                pay for the round trip transportation costs, including all customs                brokerage and clearance fees, for removed/repaired EHRP Eligible                Engines                to and from VENDOR’s designated facility(ies).  Risk of damage                or loss shall be borne by Northwest for transportation to and from                the                VENDOR designated facility.  For purposes of this Agreement,                delivery to VENDOR shall be considered as when the Engine is put                into the                care of VENDOR at VENDOR’s designated facility, and delivery to Northwest                shall be considered as when the Engine is put into the care of the                Northwest designated shipper by VENDOR.  Any transportation                costs incurred by VENDOR between the Effective Date and the date                Northwest                elects not to have VENDOR provide such services shall be invoiced                to and                paid by Northwest. |
|-------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 7.2.3 | For                Engines that VENDOR may elect to move between its facilities for                performance of Services under this Agreement, after delivery thereof                to                VENDOR, VENDOR shall be responsible for all transportation costs,                customs                duties and brokerage fees and risk of loss or damage in connection                with                such movement. |
|--------|-------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 7.2.4 | [***] |
|--------|-------|-------|

|   | 7.2.4 | For                Module Exchanges, VENDOR shall provide, at no charge all necessary                shipping containers that properly protect from damage and secure                the                removed module during transportation to and from the VENDOR designated                facility. |
|--------|-------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 7.2.5 | For                Engines, Northwest shall provide containers that properly protect                and                secure the Engine being returned to the VENDOR designated facility,                unless                the Engine is VENDOR-provided , in which case VENDOR shall provide                the                appropriate shipping container. While in the possession of VENDOR,                loss or                damage to any Northwest-owned container shall be the responsibility                of                VENDOR. |
|--------|-------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 7.3.1 | [***] |
|--------|-------|-------|

|   | 7.3.2 | Delivery                shall be Delivery Duty Paid (“DDP”) Incoterms, Northwest, if such                VENDOR-provided spare engine is being shipped to Northwest from outside                of                the United States, otherwise delivery will be Carriage and Insurance                Paid                (“CIP”) to Northwest.  Risk of loss during round trip                transportation of any VENDOR-provided spare engine shall remain with                VENDOR.  VENDOR will be responsible for all transportation                costs, customs brokerage and applicable duties. If Northwest exceeds                the                time requirements described in this Section 7.3, then Northwest shall                pay                to VENDOR an amount equal to the market lease rate for a CF34-3B1                engine                for each day such VENDOR-provided spare engine is delayed. |
|--------|-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 8.1 | VENDOR                shall not be liable for delay in the delivery of the Engines, LRUs                or                other items beyond the date for delivery agreed to by the Parties                if the                Services and/or delivery is delayed due to war or warlike operations,                hostility, riots, insurrection, civil commotion, fire, act of God,                government legislation or regulations (an "Excusable                Delay”).  Such delay shall be limited to one working day                (Monday-Friday) for every working day actually lost by reason of                an event                of Excusable Delay.  VENDOR will make all reasonable efforts to                regain time lost. |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 8.2 | VENDOR                shall advise Northwest of any anticipated Excusable Delays as soon                as                practicable and keep Northwest advised of any developments. Upon                the                occurrence of an Excusable Delay, VENDOR shall immediately, and in                any                case within 48 hours of such occurrence, give Northwest notice by                telephone and in writing (via fax, and express mail) of such event                (with                full particulars of its nature) and of the estimated effect thereof                on the                deliveries hereunder, and of the steps taken or to be taken to minimize                or                eliminate any delay. Within 24 hours after the end of the Excusable                Delay,                VENDOR shall give Northwest notice in writing (via facsimile and                express                mail) of the date when the Excusable Delay came to an end. Upon                notification from VENDOR of any delay, Northwest and VENDOR shall                use                reasonable efforts to re-schedule Services and delivery of Engines,                LRUs                or other items at no cost to Northwest. Both Parties agree to work                with                each other to explore and implement practical alternatives for the                purposes of minimizing any impact resulting from an Excusable Delay. |
|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 8.3 | [***] |
|-----|-------|

| 8.4 | VENDOR                shall provide written notice to Northwest 90 days prior to the expiration                of any collective bargaining agreement. VENDOR shall also periodically                apprise Northwest of the status of collective bargaining agreement                negotiations to which VENDOR is a party and potentially affecting                the                Services or delivery of the Engines, LRUs or other items, and an                assessment of the effect such negotiations will have on VENDOR’s ability                to perform hereunder. |
|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 8.5 | In                the event of a delay other than an Excusable Delay affecting the                delivery                of Services and/or Engines, LRUs or other items, both Parties agree                to use                reasonable efforts to address the results of such delay at no cost                to                Northwest. Northwest's cooperation in such endeavors shall not be                construed to be a waiver of any rights Northwest may have with respect                to                VENDOR's non-performance. Both Parties agree to work with each other                to                explore and implement practical acceptable alternatives to minimize                any                impact. All reasonable efforts will be made by VENDOR (and VENDOR                shall                require the same of its contractors and other suppliers) at no additional                cost to Northwest to regain the time lost, including the working                of                weekends, overtime and holidays. |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.1.1   | EHRP                Invoicing.                No later than the tenth (10th)                calendar day of any month throughout the Term of this Agreement,                Northwest                shall provide the Program Manager with a complete monthly statement                of                Engine Flight hours and Engine Flight Cycles by EHRP Eligible Engine                and/or any VENDOR-provided spare engines that may be installed and                operated on the Aircraft during the month such engines are installed,                substantially in the form set out in Exhibit A in relation to the                previous                month’s flight data for the EHRP Eligible Engines and any VENDOR Spare                Engines made available to it and utilized by Northwest under Section                4.0.  The actual fleet hour utilization in respect of the                relevant EHRP Eligible Engines and VENDOR-provided spare engines                shall be                multiplied by the EHR, and separately, if applicable under Section                7.0,                the Transportation Rate, as adjusted pursuant to the provisions of                this                Agreement.  The total amount on each invoice shall comprise the                total applicable to all EHRP Eligible Engines. VENDOR shall invoice                Northwest for the total amounts due by the fifteenth (15th)                calendar day of each month for the immediately preceding calendar                month.  Amounts invoiced will be due twenty (20) days from the                invoice date. |
|-------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.1.2   | Should                Northwest not submit the monthly statement of Engine Flight Hours                required                under Section 9.1.1 by the tenth (10th)                calendar day of the month, VENDOR shall be allowed to shorten the                due date                of amounts invoiced by one (1) day for each day such report remains                delinquent.  If such report is not received by VENDOR by the                twentieth (20th)                calendar day after the end of the month such Engine flight hours                occurred,                VENDOR shall submit an invoice to Northwest for the estimated Engine                Flight Hours, based upon the hours from the last report submitted                by                Northwest to VENDOR, with such invoice being due and payable fifteen                (15)                days after the invoice date.  Any differences between what is                actually submitted and the VENDOR provided invoice shall be reconciled                with VENDOR crediting Northwest, or Northwest making payment for                any                differences. |
|-------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.1.3   | VENDOR                shall invoice Northwest for all applicable off-wing maintenance or                time                and material charges not included in the EHR or Transporation Rate,                if                applicable, within thirty (30) days of completion of the applicable                Shop                Visit or other Services provided that are not covered in the EHR,                and                subsequent shipment to Northwest.  Unless disputed, in writing,                invoiced amounts shall be due thirty (30) days from the invoice                date. |
|-------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.1.4   | All                such amounts described above, payable in United States dollars and                set out                in the invoices, shall be shall be paid by wire transfer                to: |
|-------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.3   | The                Parties agree that Section 24.15, Northwest Guarantee, shall apply                to any                assignee payment obligations.  Northwest shall ensure timely                performance of these payment obligations.  In the event VENDOR                has not received payment within 60 days of the date of the invoice,                Northwest shall pay VENDOR all outstanding, undisputed amounts within                10                days after the initial 60 day period has                expired. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| SECTION                10.0: | TAXES,                CUSTOMS, DUTIES                AND IMPOSTS |
|------------------------------|------------------------------------------------------------------|

|   | 10.1 | VENDOR                shall include all lawfully imposed sales tax on each invoice. Except                as                provided below, Northwest shall pay all sales taxes that are lawfully                imposed by any government authority within the United States and                are based                on or measured by any payments of Northwest pursuant to this Agreement,                and for which no exemption is available. VENDOR shall pay all taxes                that                are (a) on, based on, or measured by, gross or net income or gross                or net                receipts (including any capital gains taxes or minimum taxes), or                taxes                which are capital, doing business, excess profits, net worth, or                franchise                or port fees; (b) lawfully imposed by any governmental authority                outside                of the United States; or (c) caused by or arising out of the willful                misconduct or negligence of VENDOR. In addition, VENDOR shall pay                any                interest, additions to tax, or penalties associated with the taxes                set                forth in (a), (b) or (c) above. No sales tax shall be collected by                VENDOR                if (a) a specific exemption applies to (i) the Services purchased                hereunder or (ii) any transaction occurring pursuant to this Agreement;                (b) Northwest has been authorized to make tax payments directly to                the                applicable state authorities; or (c) VENDOR is obligated to pay the                taxes                as set forth herein. VENDOR shall promptly, upon receipt from any                tax                authority of any levy, notice, assessment, or withholding of any                tax for                which Northwest may be obligated, notify Northwest in writing directed                to                the following address: Senior Tax Counsel, Northwest Airlines, Inc.,                Dept.                A4450, 2700 Lone Oak Parkway, Eagan, MN 55121-1534. If under the                applicable law of the taxing jurisdiction Northwest is allowed to                directly                contest such tax in its own name, then Northwest shall be entitled,                at its                own expense and in its own name, to contest the imposition, validity,                applicability or amount of such tax and, to the extent permitted                by law,                withhold payment during pendency of such contest. If Northwest is                not                permitted by law to contest such tax in its own name, upon Northwest’s                request, VENDOR shall in good faith, at Northwest’s expense, contest the                imposition, validity, applicability or amount of such                tax.  VENDOR shall (a) supply Northwest with such information                and documents reasonably requested by Northwest as are necessary                or                advisable for Northwest to control or participate in any proceeding                to the                extent permitted herein, and (b) make all reasonable efforts to assist                Northwest with evidentiary and procedural development of such proceeding                or contest.  VENDOR shall in good faith and using best efforts                assist Northwest with the accumulation of information and documentation                requested by Northwest to recover or seek a refund of any sales or                use tax                paid by Northwest as a result of its purchases pursuant to this Agreement. |
|--------|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 10.2   | VENDOR                agrees to pay, and to indemnify and hold harmless Northwest from                and                against, any direct or indirect customs duties, or similar imposts,                costs,                charges, interest and penalties paid to the U.S. Government, relating                to                or arising out of the initial importation into the U.S. of the Engines                or                the transportation of the Engines within North America for purposes                of                installation. |
|------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 10.3 | The                provision of any equipment or Services hereunder to Northwest is                contingent upon VENDOR being able to do so in compliance with all                applicable laws, including without limitation, laws relating to the                import                and export of Engines. Northwest shall be the importer of record                for all                such equipment and Northwest shall be responsible for making arrangements                to ensure that such equipment clears customs where applicable and                paying                any and all customs, duties, taxes and any fees imposed by any                governmental authority unless otherwise specified in this Agreement.                VENDOR will be liable for customs, duties, taxes and any fees imposed                by                any governmental authority for EHRP Eligible Engines and/or parts                it ships                out of the United States and back for Services. |
|--------|------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 11.1   | This                Agreement shall become effective as of the Effective Date and, unless                sooner terminated in accordance with the provisions of this Section                or as                otherwise provided in this Agreement, shall, unless extended by the                Parties in writing upon mutually agreeable terms, remain in effect                until                latest lease term date as shown in Attachment A (the                “Term”). |
|------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 11.2   | Termination                for                Cause. |
|------------------|------------------------------------------------------|

| 11.2.1   | Termination                by                Northwest for Breach. After 30 days written notice to VENDOR of a                breach hereunder, during which notice period VENDOR is unable or                unwilling                to cure such breach, Northwest may terminate this Agreement in whole                or in                part.  If Northwest elects to terminate, it shall have against                VENDOR all remedies provided by law and                equity. |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 11.2.2   | Termination                by VENDOR                for Breach.  After 30 days written notice to Northwest of                a breach hereunder, during which notice period Northwest is unable                or                unwilling to cure such breach, VENDOR may terminate this Agreement                in                whole or in part.  If VENDOR elects to terminate, VENDOR shall                have against Northwest all remedies provided by law and                equity. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 11.3 | Gifts                and                Gratuities.  Northwest may, by written notice to VENDOR,                terminate this Agreement in whole or in part without liability to                Northwest if it is determined by Northwest that gratuities, in the                form of                entertainment, gifts, or otherwise, were offered or given by VENDOR,                or                any agent or representative of VENDOR to any officer or employee                of                Northwest, or other person sharing a common direct or indirect interest                with an officer or employee of Northwest, with a view toward favorable                treatment related to (i) bidding, awarding, securing or amending                a                contract with Northwest; or (ii) any other transaction where payment                is                made by Northwest for Engines or Services.  In the event that                this Agreement is terminated by Northwest pursuant to this provision,                Northwest shall be entitled, in addition to any other rights and                remedies,                to recover or withhold an amount equal to the cost incurred by VENDOR                in                respect of such gratuities.  In the event this Agreement is                terminated in part pursuant to this provision, such termination shall                affect only the Engines or LRUs with respect to which the gifts or                gratuities were offered or given. |
|--------|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 11.4 | Effect                of                Termination. |
|--------|------|------------------------------------------------------|

| 11.4.1   | In                the event Northwest terminates this Agreement in whole or in part                as                provided in Section 11.2. above, Northwest may procure, upon such                terms                and in such manner as Northwest may deem appropriate, Services similar                to                the Services terminated, and VENDOR shall be liable to Northwest                for any                costs or other damages to which Northwest may be entitled in accordance                with applicable law, provided that VENDOR shall continue the performance                of this Agreement as to that portion not terminated.  In                addition, in any event, Northwest may seek such other relief as it                may                deem appropriate. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 11.4.2   | In                the event VENDOR terminates this Agreement in whole or in part as                provided                in Section 11.2. above, VENDOR shall be entitled to payment of all                outstanding invoices, work performed but not invoiced at the time                of                termination, and return of all VENDOR property in possession of                Northwest. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 11.5   | In                the event an Excusable Delay impacting the entire program, lasts                for more                than 30 days, Northwest may, after 30 days written notice to VENDOR,                terminate this Agreement in whole or in                part. |
|------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 14.1 | During                the Term, VENDOR guarantees to Northwest that the Services Rate (defined                herein as the aggregate sum of the pricing of the EHR, Transportation                Rate, and time and material rates set forth in Attachment C ) actually                paid by Northwest under this Agreement shall be more favorable than                or at                least as favorable as the pricing of an EHR, Transportation Rate                and time                and material rates paid by any other VENDOR customer (the “Other                Customer”) in any other agreement entered into by VENDOR with the Other                Customer for the sale of CF34-3B1 Services described herein under                comparable terms and conditions (including, without limitation, engine                model, fleet size, term length and fleet operating                parameters).  If VENDOR enters into an agreement with the Other                Customer with an EHR, Transportation Rate or time and material rates                that                are more favorable than the rates paid by Northwest under this Agreement,                subject to the conditions above, then Northwest shall have the benefit                of                the Other Customer’s pricing from the effective date of the Other                Customer’s agreement.  In such event, VENDOR shall notify                Northwest and reconciliation shall be performed, as                required.  VENDOR will not be required to offer the Other                Customer pricing to Northwest if that pricing is part of a material                equity                partnership or joint venture. |
|--------|------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 15.1 | VENDOR                hereby makes the following representations and warranties to Northwest: |
|------|-----------------------------------------------------------------------------------------------|

| 15.1.1 | That                the approval of any filing or registration with any governmental                authority, body, commission or agency is not or will not be required                as a                condition to the validity of this Agreement or any of the documents                or                agreements contemplated by this Agreement or as a condition to or                in                connection with the authorization, execution, delivery or performance                hereof by VENDOR except those which have been duly made or obtained,                certified copies of which have been or will be delivered to Northwest.                The                performance thereof will not violate or contravene any law, regulation,                order, judgment or other similar obligation imposed by any government                or                regulatory agency, court, administrative or legislative body. |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 15.1.2 | That                there is no known action or proceeding pending or threatened against                VENDOR or any of its subsidiaries or associated companies, if any,                before                any court or administrative agency which if adversely determined                would                result in the inability of VENDOR to perform its obligations under                this                Agreement. |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 15.1.3 | That                it has established and shall maintain during the Term an employee                drug                testing program as may be required by the Aviation Authorities. VENDOR                will provide to Northwest a copy of that plan. |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 16.1 | General                Indemnification: VENDOR shall defend, indemnify and hold harmless                Northwest together with its directors, officers, employees, assignees,                agents and shareholders (collectively, the "Indemnified Parties"),                from                and against all claims, demands, suits, obligations, liabilities,                damages,                losses and judgments, including costs and expense related thereto                (including, but not limited to, reasonable attorneys’ fees), which may be                asserted against, suffered by, charged to or recoverable from the                Indemnified Parties by reason of (i) injury to or death of any person,                including, but not limited to, employees of VENDOR and any passengers                on                any Aircraft upon which the Engines may be installed, or (ii) loss                of or                damage to any property, including, but not limited to, aircraft upon                which                the Engines may be installed or Services performed, if, and to the                extent,                such injury, death, loss or damage arises from the acts, omissions,                or                negligence of VENDOR, its directors, officers, employees, servants                or                agents or those for whom it is responsible at law, a breach of this                Agreement by VENDOR. This indemnification shall not apply to the                extent                that the injury, loss or damage is caused the negligence or willful                misconduct of the Indemnified Parties or for which Northwest indemnifies                VENDOR hereunder. Subject to conflicts of interest, attorney work                product                and attorney-client privilege, the Parties shall cooperate in sharing                information regarding any incident giving rise to actual or potential                injury, loss or damage. |
|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 16.2 | Limitation                of Liability |
|------|----------------------------------------|

| 16.3.1 | Claims                Against Northwest.  VENDOR                shall indemnify and hold Northwest, its subsidiaries and affiliates,                and                their officers, directors, agents and employees (collectively for                purposes                of this Section 16 "Northwest") harmless from and against any and                all                royalties, liabilities, damages,  losses, claims, actions,                lawsuits, demands, fines, penalties, and all associated with any                of the                foregoing or associated with the successful establishment of the                right to                indemnification hereunder (collectively, the "Damages") based upon,                caused                by, arising from, or in any manner connected with, directly or indirectly,                any suit, action, proceeding, allegation, assertion or claim that                any                Service purchased or supplied hereunder or any portion thereof thereof                constitutes an infringement of any United States or foreign patent,                design or model duly granted or registered ("Claim"), provided that                at the                time the suit, action, proceeding, allegation, assertion or claim                arises                or is made, such foreign country in which any foreign patent is held                is a                party to the International Convention for the Protection of International                Property (Paris Convention) in any of its revised forms or Article                27 of                the Chicago Convention on International Civil Aviation of December                7,                1944. |
|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 16.3.2 | Remedies                and Judgments.  In connection with the foregoing, VENDOR                agrees to defend any suit or action of the type described                above.  Northwest's remedy and VENDOR's obligation and liability                under this Section 16 are conditional upon Northwest giving VENDOR                written                notice promptly after Northwest receives notice of a suit or action                against Northwest alleging infringement or after Northwest receives                a                written claim of infringement, whichever is earlier.  Failure to                notify VENDOR as provided in the foregoing sentence shall not relieve                VENDOR of any liability that it may have to Northwest except to the                extent                that VENDOR demonstrates the defense of any such claim is prejudiced                thereby, and, in such event, only to the extent thereof. VENDOR shall                control and conduct the defense and/or settlement of such suit or                action                either in the name of VENDOR or of Northwest, or                both.  Northwest shall cooperate with VENDOR and shall, upon                VENDOR’s request and at VENDOR’s expense, arrange for attendance of                representatives of Northwest at hearings and trial and assist in                effecting                settlements, securing and giving evidence, obtaining the attendance                of                witnesses and in the conduct of the defense of such suits or actions. |
|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 16.3.3 | VENDOR                shall assume and pay any and all judgments and all costs assessed                against                Northwest in a final judgment of any such suit or action, and any                payments                in settlement imposed upon or incurred by Northwest with VENDOR’s                approval, together with all interest accruing after entry of any                such                judgment or after the making of any such settlement, and VENDOR shall                also                reimburse Northwest for all reasonable expenses (excepting consequential                damages attributable, e.g., to loss of business, profits or good                will by                Northwest) incurred by Northwest with VENDOR’s written approval as the                result of such suit or action provided Northwest has complied with                the                conditions hereof with respect to notice and cooperation in connection                with such suit or action. |
|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 16.3.4 | Continuing                Use.                In the                event any Service purchased or supplied hereunder, or any portion                thereof,                becomes the subject of any Claim, or if VENDOR in its reasonable                judgment                at any time decides that the Services supplied hereunder, or any                portion                thereof, shall become the subject of such a Claim, VENDOR shall promptly,                but, in any event, no more than 30 days after receipt of notice from                Northwest of a Claim, or the likelihood thereof or the entry of any                order                or decree permanently or temporarily enjoining the use of the Services                supplied hereunder, or any portion thereof, at its own expense and                option                either: (i) obtain for Northwest the right to use such Services;                or (ii)                replace, modify, substitute, or update the infringing Services such                that                they become non-infringing. |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | In                the event that any such suit or action results in an order, decree                or                judgment enjoining or otherwise prohibiting Northwest from effectively                using any Service for its intended purposes, or any settlement made                or                approved by VENDOR has such result, VENDOR agrees at its option and                expense to promptly either: (i) procure for Northwest the right to                continue using such Services; or (ii) modify said Services so that                it                becomes non-infringing and otherwise complies with the provisions                of this                Agreement; or (iii) replace said Item with a non-infringing Service                Item                suitable for Northwest’s requirements and in a condition equivalent to                that Service.  The foregoing provisions hereof shall apply in                case of any such order, decree, judgment or settlement prohibiting                Northwest from effectively using any provided Service. |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 16.3.5 | Exceptions.                Northwest will hold VENDOR harmless in the event of any suit or action                relative to Northwest or PAH furnished designs, equipment, materials                or                data, or any design which is imposed by Northwest on VENDOR as an                alternative to VENDOR’s suggested design, or any Northwest modification of                the VENDOR supplied Item, or any component or part thereof, or any                new                designs, equipment, materials or data incorporated, after delivery                and                acceptance of the Item, by Northwest without the involvement of VENDOR. |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 16.3.6 | The                foregoing indemnity shall not extend to any claim of infringement                based on                any modification, change or combination not in accordance with VENDOR's                written procedures or without VENDOR's written approval or consent                thereto, provided that the claim for infringement relates to the                combination, change or modification as opposed to solely the Service                itself. However, the exclusions set forth in this subparagraph shall                not                relieve VENDOR of its obligation under this Section 16 if the Service                continues to be infringing after the removal, as the case may be,                of any                changes, modifications or combinations. |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 17.1.1 | Workers'                Compensation — [***] |
|--------|----------------------------------------------------|

| 17.1.2 | Employer's                Liability — [***] |
|--------|---------------------------------------------------|

| 17.1.3 | Comprehensive                Aviation Liability — [***] Combined Single Limit Insurance per                occurrence.  Comprehensive Aviation Liability Insurance shall                include endorsements for property damage; bodily injury; personal                injury;                contractual liability; completed operations/aircraft parts/product                liability; hangarkeepers liability; naming Northwest and Operators                as an                additional insured; and provide severability of interest, cross liability,                breach of warranty, and independent contractors’ coverage. |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 17.1.4 | VENDOR                agrees to insure (or self-insure) all loss to VENDOR's owned or leased                tools and equipment. |
|--------|----------------------------------------------------------------------------------------------------------------------------------|

| 17.1.5 | Prior                to the commencement of this Agreement, and upon each insurance policy                renewal, Certificates of Insurance shall be delivered to Northwest                evidencing compliance with the insurance terms of this Agreement.                All of                the above insurance shall be written through a company or companies                reasonably satisfactory to Northwest, and the Certificates of Insurance                shall be of a type that unconditionally obligates the insurer to                notify                Northwest in writing at least 30 days in advance of the effective                date of                any material change in or cancellation of such insurance. |
|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 17.2.1 | To                waive any rights of subrogation against Northwest, its directors,                officers, agents, independent contractors, employees, successors                and                assigns, and other authorized representatives. |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 17.2.2 | To                provide that such insurance is primary without right of contribution                from                Northwest's insurance. |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 17.2.3 | To                provide that Northwest is not obligated for the payment of any premiums,                deductibles, retentions or self-insurances thereunder. |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 17.2.4 | With                respect to the insurance requirements described in Subsection 17.1.3,                the                underwriter will acknowledge that the policy covers the liability                as                required under the “Indemnification” Section of this Agreement to the                extent coverage is available under said policy. |
|--------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 17.3 | In                the event that VENDOR fails to maintain in full force and effect                any of                the insurance and endorsements described in this insurance Section,                Northwest shall have the right (but not the obligation) to terminate                this                Agreement immediately or to procure and maintain such insurance or                any                part thereof at VENDOR’s cost.  The cost of such insurance shall                be payable by VENDOR to Northwest upon demand by Northwest.  The                procurement of such insurance or any part hereof by the other Party                shall                not discharge or excuse the defaulting Party's obligation to comply                with                the provisions of this Section. |
|--------|------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 17.4 | The                Parties hereby agree that from time to time during the life of this                Agreement, Northwest may require VENDOR to increase the amount of                insurance set forth in Subsections 17.1.2, 17.1.3, and 17.1.4 above,                if                the circumstances and conditions of VENDOR's operations under this                Agreement should be deemed to require reasonable increases in any                or all                of the foregoing minimum insurance coverages. Increases in the levels                of                coverage may be subject to availability of limits and costs. VENDOR                will                use its best efforts to comply with such request. |
|--------|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 17.5 | Vendor                shall notify Northwest promptly at the point when any aggregate limit                is                exhausted or anticipated to be exhausted by [***] or more. |
|--------|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 18.1 | During                the term of this Agreement, the Parties hereto, may exchange information                or data which each Party considers private, proprietary,                competition-sensitive or confidential in connection with the transactions                contemplated under this Agreement. |
|--------|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 18.2   | "Proprietary                Information", as used herein, shall mean written or documentary                information or information in any other tangible form which is marked                proprietary, confidential, competition sensitive, or bears a marking                of                like import or, if orally disclosed, which the disclosing Party states                in                writing at the time of disclosure is to be considered proprietary                provided, that such information is reduced to writing and a copy                thereof                is delivered to the receiving Party within 30 days after such oral                disclosure.  Information shall not be deemed proprietary, and                the receiving Party shall have no obligation with respect to any                such                information, which: |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 18.2.1   | is                already known to the receiving Party as evidenced by prior documentation                thereof; or |
|--------------------|-----------------------------------------------------------------------------------------------------------------------|

| 18.2.2   | is                or becomes publicly known through no wrongful act of the receiving                Party;                or |
|--------------------|------------------------------------------------------------------------------------------------------------------------------|

| 18.2.3   | is                rightfully received by the receiving Party from a third party without                restriction and without breach of this Agreement;                or |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 18.2.4   | is                disclosed by the disclosing Party to the third party without a similar                restriction on the rights of such third party;                or |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 18.2.5   | is                approved for release by written authorization of the transmitting                Party;                or |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------|

| 18.2.6   | is                disclosed, in any event, after the expiration of 10 years from the                date                when such Proprietary Information was                delivered. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 18.3   | The                prices, terms and conditions of this Agreement shall be considered                Proprietary Information. |
|------------------|-------------------------------------------------------------------------------------------------------------------------------|

| 18.4   | Neither                Party shall disclose, and each Party shall protect the Proprietary                Information received from the other Party hereunder with the same                degree                of care as such Party takes to preserve and safeguard its own Proprietary                information, and such degree of care as is reasonably calculated                to                prevent inadvertent disclosure. |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 18.5   | In                order to minimize the possibility that the Proprietary Information                will be                divulged to third parties, the Parties agree that Proprietary Information                will only be divulged to employees who have a need to know the Proprietary                Information in connection with a Party’s performance under this                Agreement. |
|------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 18.6   | The                Parties agree that, in the event a receiving Party uses Proprietary                Information contrary to the terms of this Section, the disclosing                Party,                in addition to any other remedies available to it, shall have the                right to                equitable relief, restraining or enjoining the receiving Party from                using                such Proprietary Information in violation of the terms and conditions                of                this Section and to recover from the receiving Party reasonable costs                in                enforcing this Section, including reasonable attorneys’                fees. |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 18.7   | Neither                the execution and delivery of this Agreement nor the delivery of                any                Proprietary Information hereunder shall be construed as granting                either                expressly or by implication, estoppel, or otherwise, any rights in                or                license under any present or future data, drawings, plans, ideas,                or                methods disclosed under this Agreement, or under any invention or                patent                now or hereafter owned or controlled by either Party                hereto. |
|------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 18.8   | Notwithstanding                the foregoing, Proprietary Information may be disclosed upon the                written                consent of the transmitting Party, or pursuant to valid legal orders                or                governmental regulations or in connection with an action or proceeding                brought to enforce or interpret this                Agreement. |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 19.1 | VENDOR                shall obtain and pay for all permits, fees and licenses necessary                for the                performance of the work contemplated hereunder. VENDOR shall comply                with                all statutes, laws, ordinances, regulations, rules and orders bearing                on                the conduct of the work enacted or adopted by any federal, state,                local,                municipal or other authority or governmental body having jurisdiction,                or                any rules or regulations of any insurance company, board of fire                underwriters, bureau or similar body applicable to the work and shall                notify Northwest if any Attachments are at variance therewith. |
|--------|------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 20.1 | Each                Party hereby waives any and all rights it may have to receive exemplary                or                punitive damages with respect to any claim it may have against the                other                Party, it being agreed that no Party shall be entitled to receive                money                damages in excess of its actual compensatory damages, notwithstanding                any                contrary provision contained in this Agreement or otherwise.                Notwithstanding the provisions in this Section 20, the Parties recognize                and agree that certain business relationships could give rise to                the need                for one or more of the Parties to seek emergency, provisional, summary                or                declaratory relief and for temporary injunctive relief from a court                of                competent jurisdiction pending the arbitration of all underlying                claims                between the Parties. |
|--------|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 21.0 | Northwest                shall, at its sole discretion, have the right to setoff or deduct                any                undisputed and agreed amounts owing from VENDOR to Northwest against                any                undisputed and agreed amounts payable by Northwest to VENDOR, solely                in                connection with this Agreement. |
|--------|------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 22.1 | Any                controversy, claim or dispute of whatever nature arising from performance                of the Agreement or the relationship of the Parties arising therefrom,                including those arising out of, or relating to, any agreement between                the                Parties or the breach, termination, enforceability, scope or validity                thereof (a "Dispute"), including those arising out of a cessation                of the                work by VENDOR, shall be resolved in accordance with this Section.                The                Parties shall attempt in good faith to resolve any Dispute promptly                by                negotiations between representatives with authority to settle the                Dispute.                All negotiations pursuant to this Subsection will be confidential                and will                be treated as compromise and settlement negotiations for purposes                of the                Federal Rules of Evidence and the rules of evidence of any state.                If the                matter has not been resolved within 60 days of a Party’s request for                negotiation, either Party may initiate arbitration as provided in                this                Section by providing the other Party with written notice of its intent                so                to do (the “Dispute Notice”). |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 22.2 | Arbitration |
|--------|------|-------------|

|   | 22.2.1 | If                the Dispute has not been resolved within 20 days after receipt of                the                Dispute Notice, then the Dispute shall be determined by binding                arbitration in Chicago, Illinois. The arbitration shall be conducted                in                accordance with such rules as may be agreed upon by the Parties,                or                failing agreement within 30 days after arbitration is demanded, in                accordance with the Commercial Arbitration Rules of the American                Arbitration Association ("AAA") in effect on the Closing Date, subject                to                any modifications contained in this Agreement. The Dispute shall                be                determined by one arbitrator if the Parties are able to agree on                such                arbitrator. If they are not able to so agree, the matter shall be                decided                by three arbitrators, in which case one arbitrator will be appointed                by                each of the Parties, and those two will select the third arbitrator |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 22.2.2 | The                arbitrator(s) shall base the award on the applicable law and judicial                precedent which would apply if the Dispute were decided by a United                States                District Judge, and the arbitrator(s) shall have no authority to                render an                award which is inconsistent therewith. The award shall be in writing                and                include the findings of fact and conclusions of law upon which it                is                based. |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 22.2.3   | Unless                the Parties agree otherwise, discovery will be limited to an exchange                of                directly relevant documents.  Depositions will not be taken                except as needed in lieu of a live appearance or upon mutual agreement                of                the Parties.  The arbitrator(s) shall resolve any discovery                disputes. The arbitrator(s) and counsel of record will have the power                of                subpoena process as provided by law. The Parties knowingly and voluntarily                waive their rights to have any Dispute tried and adjudicated by a                judge or                a jury. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 22.2.4   | The                arbitration shall be governed by the substantive laws of the State                of                Minnesota without regard to choice of law rules, and by the arbitration                law of the Federal Arbitration Act (Title 9, U.S.                Code).  Judgment upon the award rendered may be entered in any                court having jurisdiction.  Notwithstanding the foregoing upon                the application by either Party to a court for an order confirming,                modifying or vacating the award, the court shall have the power to                review                whether, as a matter of law based on the findings of fact determined                by                the arbitrator(s), the award should be confirmed, modified or vacated                in                order to correct any errors of law made by the                arbitrator(s).  In order to effectuate such judicial review                limited to issues of law, the Parties agree (and shall stipulate                to the                court) that the findings of fact made by the arbitrator(s) shall                be final                and binding on the Parties and shall serve as the facts to be submitted                to                and relied upon by the court in determining the extent to which the                award                should be confirmed, modified or                vacated. |
|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 22.2.5   | Except                as otherwise required by law, the Parties and the arbitrator(s) agree                to                keep confidential and not disclose to third parties any information                or                Documents obtained in connection with the arbitration process, including                the resolution of the Dispute.  If either Party fails to proceed                with arbitration as provided in this Agreement, or unsuccessfully                seeks to                stay the arbitration, or fails to comply with the arbitration award,                or is                unsuccessful in vacating or modifying the award pursuant to a petition                or                application for judicial review, the other Party shall be entitled                to be                awarded costs, including reasonable attorneys’ fees, paid or incurred in                successfully compelling such arbitration or defending against the                attempt                to stay, vacate or modify such arbitration award and/or successfully                defending or enforcing the award. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 22.2.6 | The                prevailing Party shall be entitled to reasonable attorneys’ fees and                costs, including experts’ fees, in connection with such arbitration                (including, without limitation, appeals of the foregoing) or any                suit or                action to enforce or interpret any of the provisions of this Agreement,                or                which is based thereon.  The determination of who is the                prevailing Party and the amount of reasonable attorneys’ fees to be paid                to the prevailing Party shall be decided by the arbitrator, except                that                either Party may request to have the award or non-award of attorneys’ fees                and costs reviewed by a court, which hears any exceptions made to                an                arbitration award submitted to it for confirmation as a judgment,                including any additional fees or costs attributable to the court                proceedings.  If the court takes no action on such additional                fees and costs, the arbitrator is empowered to make such decisions. |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 23.1 | Northwest                is a participating member of the Customs Trade Partnerships Against                Terrorism (C-TPAT). As such, Northwest is required to develop and                implement programs to enhance security of its supply chain consistent                with                C-TPAT guidelines as set forth in www.customs.ustreas.gov.  By                entering into this Agreement, VENDOR agrees to provide security                information to Northwest as may be reasonably requested.  VENDOR                further agrees that it has implemented programs or will cooperate                with                Northwest in developing and implementing programs designed to fulfill                the                C-TPAT initiatives.  VENDOR understands Northwest may be subject                to additional supply chain security obligations in the future and                agrees                to cooperate with Northwest as promptly as practicable in fulfilling                such                obligations as may be requested by Northwest. |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.1 | Non-waiver.                Failure of                either Party to insist upon strict performance of any of the terms                and                conditions herein shall not be deemed a waiver of any rights or remedies                that either Party shall have and shall not be deemed a waiver of                any                subsequent default of the terms and conditions hereof.  The                shipping or receiving of any Engines under this Agreement shall not                be                deemed or be a waiver of any right of either Party for any failure                by the                other Party to comply with any of the provisions of this Agreement. |
|--------|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.2 | Equal                Employment Opportunity.   VENDOR                agrees that, in performing hereunder, it will comply with and abide                by all                applicable requirements contained in governmental statutes, rules,                regulations and orders including all provisions of Section 202 of                Executive Order No. 11246 and rules and regulations pertaining to                Equal Employment Opportunity, and also including any government                affirmative action programs in connection therewith, the provisions                of                which are incorporated herein by reference, and VENDOR agrees to                hold                Northwest and any of its subsidiaries or affiliates harmless from                any and                all liabilities, claims, fines or penalties (including attorneys'                fees and                settlements) which may arise out of the failure of VENDOR to comply                with                such requirements. |
|--------|------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.3 | Fair                Labor Standards Act and Beck Notice Compliance.  VENDOR                agrees that all Engines shipped and Services provided to Northwest                shall                be produced in compliance with all applicable federal and state laws,                regulations, and orders, and that production of such Engines complies                with                the applicable requirements of Fair Labor Standards Act and all                regulations and orders issued thereunder by the United States Department                of Labor |
|--------|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 24.3.1 | If                applicable, during the Term of this Agreement, VENDOR agrees to comply                with the “Beck Notice” requirements in 29 CFR Section 470.  This                Agreement incorporates by reference paragraph 29 CFR Part 470.2(a). |
|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.4 | Small                Business Subcontracting.   As a contractor providing                services to the U.S. government, Northwest is required to include                the                provisions of the clause set forth in FAR 52.219-8 (48 CFR Part 52)                in                contracts with subcontractors. If applicable, VENDOR agrees that                such                clause is a part of this Agreement to the same extent as if set forth                in                full herein and that, in accordance therewith, VENDOR will adopt                a plan                that complies with the requirements of the plan required by the clause                at                FAR 52.219-9, “Small Business Subcontracting Plan” (48 CFR Part 52). |
|--------|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.5 | Publicity.  None                of the Services purchased hereunder shall be referred to, described                or                illustrated in connection with publicity of any kind without the                prior                written authorization from Northwest.  This Agreement does not                confer upon VENDOR, and shall not be construed as conferring upon                VENDOR,                any right or license to use in any manner whatsoever Northwest’s name,                likeness, servicemarks or trademarks. |
|--------|------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.6 | Notices.  Notices                permitted or required to be given hereunder shall be deemed sufficient                if                given by (i) personal delivery, (ii)registered or certified mail,                postage                prepaid, return receipt requested, (iii) overnight courier service,                or                (iv) telefacsimile and shall be effective and deemed received (a)                in the                case of personal delivery, upon receipt  by the Party to whom                notice is given, (b) in the case of registered or certified mail,                on the                date of receipt, refusal or non-delivery indicated on the return                receipt,                (c) in the case of overnight courier or package service, upon receipt                as                evidenced by a receipt executed by an agent or employee of the addressee,                and (d) in the case of telefacsimile transmission, upon printed                confirmation that the transmission was received.  Notices shall                be addressed to the following respective addresses of the Parties,                or such                other addresses as the Parties may designate by notice from time                to time: |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | Northwest: | Northwest                Airlines, Inc. |
|--------|------------|-----------------------------------------|

|   | Department                C8290 |
|--------|---------------------------------|

|   | 7500                Airline Drive |
|--------|-----------------------------------|

|   | Minneapolis,                MN 55450-1101 |
|--------|-------------------------------------------|

|   | Fax:                612-726-7775 |
|--------|----------------------------------|

|   | Attn:                Vice President, Materials Management |
|--------|-----------------------------------------------------------|

|   | Northwest                Airlines, Inc. |
|--------|-----------------------------------------|

|   | Department                A1180 |
|--------|---------------------------------|

|   | 2700                Lone Oak Parkway |
|--------|--------------------------------------|

|   | Eagan,                MN 55121-1534 |
|--------|-------------------------------------|

|   | Fax:                612-726-0921 |
|--------|----------------------------------|

|   | Attn:                VP - Law |
|--------|-------------------------------|

|   | VENDOR: | Standard                Aero |
|--------|---------|------------------------------|

|   | 33                Allen Dyne Road |
|--------|-----------------------------------|

|   | Winnipeg,                MB R3H 1A1 |
|--------|-------------------------------------|

|   | Canada |
|--------|--------|

|   | Attn:                Northwest Airlines Program Manager |
|--------|---------------------------------------------------------|

|   | Fax: | 204-789-1836 |
|--------|------|--------------|

|   | Standard                Aero |
|--------|------------------------------|

|   | 145                Duncan Drive |
|--------|---------------------------------|

|   | Suite                100 |
|--------|--------------------------|

|   | San                Antonio, TX 78226 |
|--------|--------------------------------------|

|   | Attn:                Senior Vice President, Contracts |
|--------|-------------------------------------------------------|

|   | Fax: | 210-334-6188 |
|--------|------|--------------|

|   | 24.7 | Headings.  Section                and Subsection headings used in this Agreement are for convenient                reference only and do not affect the interpretation or the Agreement. |
|--------|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.8 | Applicable                Law and Venue.  This Agreement is to be governed by and                construed according to the substantive laws of the State of Minnesota,                U.S.A.  The Parties consent to the exclusive jurisdiction of the                state and federal courts for Dakota County, Minnesota, U.S.A. for                the                determination of any claim or controversy between the Parties solely                for                the granting of any injunction or similar relief related to this                Agreement. |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.9 | VENDOR                as Independent Contractor.  Northwest and VENDOR                acknowledge and agree that VENDOR is an independent contrac­tor, and                not an employee, partner or agent of or joint venture with Northwest,                and                that VENDOR will have no authority to bind Northwest or otherwise                incur                liability on behalf of Northwest.  Northwest will have no                obligation whatsoever to provide any employee benefits or privileges                of                any kind or nature to VENDOR or to any VENDOR employee, contractor                or                agent, including, without limitation, insurance or pension                benefits.  Further, VENDOR agrees that Northwest is not                responsible to collect or withhold federal, state or local taxes,                including income tax and social security, and that any and all such                taxes                imposed, assessed or levied as a result of this Agreement shall be                paid by                VENDOR, or if paid by Northwest, VENDOR shall reimburse Northwest                upon                demand. |
|--------|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 24.10 | Assignment                and Subcontracting. |
|-------|-----------------------------------------------|

|   | 24.10.1 | VENDOR                Assignment. This Agreement may not be assigned, in whole or in                part, by VENDOR without the prior written consent of Northwest, except                that (1) Northwest expressly acknowledges and consents to an assignment                pursuant to the acquisition of VENDOR by Dubai Aerospace Enterprise,                or                (2), Northwest’s consent shall not be required for the assignment by                VENDOR of all or a portion of the Agreement to a subsidiary of VENDOR. |
|--------|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.10.2 | Northwest                Assignment. Northwest may, at its option, assign this Agreement                without prior written consent of VENDOR, in multiple concurrent                assignments to one or more of the Operators as defined in this Agreement                or in whole to one  Operator, provided that, (i) unless                otherwise agreed in writing by the Parties to this Agreement, Northwest                shall remain obligated with respect to all of its obligations hereunder                and hereby irrevocably and unconditionally guarantees the obligations                of                such Operator(s) upon an assignment under this Section and (ii) such                assignment is in the form attached hereto as Exhibit                D.   Operator(s) shall abide by and comply with all                obligations of this Agreement. Northwest shall flow down all terms                and                conditions hereof to each Operator to which it makes an assignment                hereunder.  Promptly upon making an assignment to either                Operator, Northwest shall provide VENDOR with a written assignment                notice                setting forth the name of the Operator and the specific Engines affected.                Each Operator shall be responsible for all of the provisions of this                Agreement that pertain to the specific Engines operated by such                Operator.  In the event that Northwest withdraws its code-share                or airline services agreement from an Operator, Northwest will                automatically reassume all of the rights and obligations of                such  Operator under this Agreement, including but not limited                to Northwest’s right to re-assign that portion of this Agreement to                another  Operator. |
|--------|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | In                the event Northwest places Aircraft with a new carrier, operating                in the                United States with scheduled departures under a Northwest code, Northwest                shall be allowed to assign this Agreement to such carrier, with the                prior                written consent of VENDOR, such consent not to be unreasonably withheld                or                delayed. Northwest shall have the same obligations with respect to                such                new carrier as set forth in this Section 24.10.2 with respect to                Operators. |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 24.10.3 | Subcontracting.                VENDOR shall not subcontract any portion of work to be performed                under                this Agreement without the prior written consent of Northwest, and,                in all                events, VENDOR shall remain responsible for the subcontractors’                performance in all respects. The purchase of raw materials or standard                or                commercial articles is not be deemed a subcontract within the meaning                of                this Agreement. |
|--------|---------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 24.11 | Severability.   If                any provision of this Agreement shall be declared illegal, void or                otherwise unenforceable, the remaining provisions shall remain in                full                force and effect.  The Parties also agree to replace the invalid                or unenforceable provision or a portion thereof with a provision                that will                satisfy the intent of the Parties. |
|-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 24.12 | Time                of the Essence.  VENDOR and Northwest acknowledge that                time is of the essence in performance of their obligations under                this                Agreement. |
|-------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 24.13 | Complete                Agreement.  The terms, conditions and provisions of this                Agreement, the Repair or Service Orders issued hereunder, and the                drawings, schedules, exhibits, attachments or riders annexed hereto                and by                this reference made a part of this Agreement, constitute the entire                agreement between the Parties hereto and shall supersede all previous                communications, representations, or agreements, either verbal or                written,                between the Parties hereto with respect to the subject matter of                this                Agreement. There are no terms, agreements or understandings between                the                Parties that are not expressly set forth herein. This Agreement shall                not                be changed or amended except by an instrument in writing signed by                duly                authorized agents of the Parties hereto. |
|-------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 24.14 | Counterparts;                Facsimile. This Agreement may be executed by one or both of the                Parties hereto on any number of separate counterparts and all of                such                counterparts taken together shall be deemed to constitute one and                the same                instrument.  Execution may be effected by delivery of facsimiles of                signature pages and the Parties shall follow such delivery by prompt                delivery of originals of such pages. |
|-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 24.15 | Northwest                Guarantee.  Northwest hereby guarantees due performance                by the Operators of all terms, conditions, covenants and obligations                to be                performed by the Operators under this Agreement. |
|-------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

----

----

| 1.0   | GENERAL |
|-----------------|---------|

| 2.0   | CEMP                BASIC ASSUMPTIONS |
|-----------------|---------------------------------------|

| 2.1 | Eligible                Engines: | As                defined in Section 1.12 and Attachment A to the Agreement. |
|-----|----------------------------------|------------------------------------------------------------------------------|

| 2.2 | Operators: | As                defined in Section 1.28 and any future operator to which the Agreement                may                be assigned per Section 24.10. |
|-----|------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.3 | Document                Revision | All                PAH manual and SB/AD document references shall assume the latest                revision                in effect and used at the time Services or Shop Visits are being                performed                on Engines. |
|-----|----------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.1   | Engines                are maintained using an on-condition maintenance program in accordance                with Operator’s FAA approved maintenance program, which will use GE                Aircraft Engines SEI-756, 05-21-00 Table 803 as a                baseline. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.2   | Engines                are operated in accordance with the Bombardier approved Flight Crew                Operating Manual procedures, customized to Northwest specific requirements                and utilizing flex-thrust takeoff procedures where appropriate, based                on                Northwest approved procedures and operational and flight crew                discretion. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.3   | Operators                shall establish a regular interval for compressor washing in accordance                with GE Aircraft Engines SEI 756. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.4   | Engine                trend data is collected in accordance with GE Aircraft Engines SEI                756                05-21-00, and is monitored regularly according to Operator(s) FAA                approved                maintenance program.  The Operator(s) program will be based on                PAH accepted ECM program and/or                technique. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.0   | UNSCHEDULED                SHOP VISIT ASSUMPTIONS |
|-----------------|---------------------------------------------------|

| 4.1 | Unscheduled                Shop Visits may be required as a result of operational problems,                performance degradation, or engine conditions found at routine periodic                inspections that do not meet the Operator limits for serviceability. |
|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.2   | For                Engines exhibiting operational problems (loss or excessive degradation                of                performance, vibrations, oil leakage/consumption, etc) the Operator                will                follow the published Aircraft Maintenance Manual and/or Operator(s)                approved troubleshooting guides and/or fault isolation manuals in                an                attempt to avoid an unscheduled engine                removal. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | It                is recognized that Operator may, at its sole discretion, remove an                Engine                to make repairs normally performed on-wing, for operational convenience.                Costs for such repairs will be borne by Operator. |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.3 | Should                the engine be removed for an operational problem or component                deterioration beyond defined serviceable limits, the Operator(s)                will                provide the following, to include: |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | a) | Detailed                descriptions of troubleshooting results to VENDOR as may be provided                by                Operator on a case-by-case basis as requested by VENDOR. |
|--------|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 5.1 | Scheduled                Shop Visits are anticipated based on LLP replacement at or before[***] in accordance                with                GE Aircraft Engines SEI 756 05-11-00. |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 5.2 | Expected                Shop Visit work scopes for each of these Scheduled Shop Visits are                included in Tables 1-5 of this Attachment B. Actual work scopes may                be                amended, based on the specific requirements of the Engine. |
|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 5.3 | Engines                may be routed to one of the alternate locations listed below at VENDOR’s                discretion, and Operator shall be notified prior to shipment: |
|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 6.1   | For                each EngineShopVisit,                a detailed shop visit                work scope                shall be produced by VENDOR,                based on the reported reason for removal, applicable Engine                logbooks, maintenance                records, servicebulletin/AD                compliance status,                borescope inspection results and Engine                trend                data. |
|-----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 6.2   | The                detailed work scope shall be submitted to the applicable Operator                for                review and approval, with copy to Northwest, based on the provisions                of                this Agreement. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 7.0   | ENGINE                TEST PROCEDURES |
|-----------------|---------------------------------------|

|   | 7.1 | Engine                testing may be performed on-wing in accordance with the PAH on-wing                testing requirements in accordance with the Operator’s FAA approved                maintenance program. |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 7.2 | VENDOR’s                Engineering shall determine jointly with the Operator whether or                not an                on-wing test or test cell run is appropriate for a given work scope,                based                on a risk assessment. |
|--------|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 8.1 | All                AD and service bulletin incorporation must be approved by the applicable                Operator. Scheduled Shop Visits must incorporate mandatory service                bulletins and Airworthiness Directives applicable to the Engine. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 8.2   | Recommended                modifications at scheduled Shop Visits                include: |
|-----------------|-------------------------------------------------------------------------------------------|

| 9.1 | LRUs                as described in ATTACHMENT C, are maintained on-condition. |
|-----|--------------------------------------------------------------------------------|

| 9.2 | Field                level inspections, maintenance and service bulletin incorporation                are the                responsibility of the Operator(s). |
|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.3 | Shop                level inspections and service bulletins for LRUs installed on Engines                are                included in the scheduled Shop Visit work scopes listed in Tables                1 - 5,                and are summarized in Table 6. |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.4 | LRUs                installed on Engines received for scheduled Shop Visits are to remain                with                the Engine when it is removed from the Aircraft, and are assumed                to be                serviceable and operational at the time of such removal. |
|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.5 | For                Engines shipped to VENDOR’s Winnipeg facility, Operator(s) may ship                Engines short of certain LRUs.  In any case the following LRUs                must be received with the Engine due to their direct impact on                performance: |
|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 9.6   | For                Engines shipped to VENDOR’s Maryville facility, Operator may ship Engines                without any or all LRU(s).  However, should VENDOR ship such                Engines on to its Winnipeg or other designated facilities, it shall                request from Operator, and Operator shall provide in a reasonably                expeditious manner so as not to delay VENDOR in their performance                of                Services hereunder, any missing LRU(s) that may be required to properly                complete specific Services. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 10.0   | MODULE                EXCHANGES |
|------------------|---------------------------------|

| 10.1 | VENDOR                may establish exchange pools of modules for use in support of Shop                Visits                for Eligible Engines supported under this Agreement. Such exchange                pools                are to be dedicated exclusively for use on Eligible Engines and shall                not                be used or exchanged modules for or from other customers of VENDOR,                unless                approved in advance by Operator. |
|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Table                1: Shop Visit1:MODULE                EXCHANGE18K                Scheduled LLP Replacement -                Engine Work scope | Location |
|---------------------------------------------------------------------------------------------------------------------------------------------------|----------|

| Table                2:Shop Visit 1:                MODULE                EXCHANGE18K                Scheduled LLP Replacement -                Module  Work scope | Location |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------|

| Table                3:Shop Visit                2 HEAVY MAINTENANCE                SHOP VISIT:22K/25K                Scheduled LLP Replacement                - Engine Work scope | Location |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------|

| Table                4: Shop Visit3                MODULE                EXCHANGE 36K                Scheduled LLP                Replacement - Engine Work scope | Location |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------|

| Table                5:Shop Visit 3                MODULE                EXCHANGE: 36K                Scheduled LLP Replacement -                Module  Work scope | Locations |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|

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| 1.0   | EHRP                Specific                Conditions |
|-----------------|--------------------------------------------------------|

| 1.1   | The                Parties agree that the Specific Conditions used in determining the                EHR                under this Agreement, are based on the following Aircraft utilization                assumptions: |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 1.1.1   | Aircraft                Average Engine Flight Hours/Year – [***] |
|-------------------|------------------------------------------------------------------------|

| 1.1.2   | Aircraft                Average Engine Flight Hours per Cycle Ratio – [***] |
|-------------------|-----------------------------------------------------------------------------------|

| 1.2   | Should                actual Aircraft utilization, compared against the assumptions in                Section                1.1 of this Attachment C remain within the range allowances specified                in                Sections 1.2.1 and 1.2.2 below, then no EHRP Rate adjustments are                required.  Should actual Aircraft utilization exceed such range                allowances, both Parties shall mutually agree to any adjustments                that may                be required. |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 1.2.1   | [***] |
|-------------------|-------|

| 1.2.2   | [***] |
|-------------------|-------|

| 1.3   | The                terms of this Agreement are based on Northwest flight crews utilizing                the                Aircraft and Engines in accordance with Bombardier approved Flight                Crew                Operating Manual procedures, customized to Northwest specific                requirements, and utilizing flex-thrust take-off procedures where                appropriate, based on Northwest approved procedures, and operational                and                flight crew discretion. |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.1   | [***] |
|-----------------|-------|

| 2.2   | Engine                Hourly Rates |
|-----------------|------------------------------------|

|   | 3.1 | [***] |
|--------|-----|-------|

|   | 3.2 | [***] |
|--------|-----|-------|

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|   | 3.3 | LRU                Pricing Table.   Repair costs associated with repair                or overhaul of LRUs that are not covered under the EHR                Rate.  Pricing shown includes in-house or subcontracted repair                charges.  Transportation to and from VENDOR is not                included.  Rate adjustments will be made in accordance with                provisions in Section 4.0 of Attachment C, using the index for labor                and                annual cap.  Material adjustments will be as per the applicable                LRU manufacturer price catalog. |
|--------|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | [***] |
|--------|-------|

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| 4.2 | Excluded                Cause Labor/Material Rate Adjustment / Test Cell Rate Adjustment |
|-----|------------------------------------------------------------------------------------------|

|   | 4.2.1 | [***] |   |
|--------|-------|-------|--------|

|   | 4.2.2 | [***] |   |
|--------|-------|-------|--------|

| 4.3   | VENDOR                shall notify Northwest of the appropriate adjustments under this                Attachment C, no later than November 1 of each year, effective January                1                for the following year with associated detail that substantiates                the                adjustment. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.4   | An                example of how the escalation formula is calculated is shown in Exhibit                E. |
|-----------------|-------------------------------------------------------------------------------------------------------------|

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|   | 1.2.1 | VENDOR                guarantees to Northwest that at the time of delivery of an Engine                by                VENDOR following the Heavy Maintenance Shop Visit for such Engine                during                the Term of the EHRP, such Engine will have, at a minimum, an ITT                Margin                specified below. The ITT Margin shall be determined by measuring                the ITT                during the Engine’s Heavy Maintenance Shop Visit in the test cell as                opposed to on-wing measurements (the “Test Cell ITT Measurement”). |
|--------|-------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | CF34-3B1 | [***] |
|--------|----------|-------|

|   | CF34-3B1 | [***] |
|--------|----------|-------|

|   | 1.2.3 | For                Eligible Engines that undergo a Module Exchange, VENDOR shall ensure                that                the ITT Margin is equal to or greater than the ITT Margin prior to                the                Module Exchange event, based on Aircraft on-wing measurements. |
|--------|-------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 1.2.4 | Any                Eligible Engine with which a Miscellaneous Shop Visit, Heavy Maintenance                Visit or Module Exchange is performed, shall not have an ITT Margin                deterioration which exceeds [***], as measured                over a                rolling 12 month period.  Should, such Eligible Engine                experience a rate of deterioration that exceeds the above limit,                VENDOR                and Northwest shall mutually agree to schedule the Engine for removal,                if                required, and VENDOR shall perform the necessary Miscellaneous Shop                Visit                or Heavy Maintenance Visit as corrective action, and credit Northwest                [***] for each                Engine removed early. |
|--------|-------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.2.3 | “Part”                means Engine parts provided by VENDOR and delivered to Northwest                as                installed equipment in an Engine. |
|--------|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.2.4 | “Direct                Damage” means the damage suffered by a Part itself upon its Failure. |
|--------|-------|---------------------------------------------------------------------------------------------------------|

|   | 2.2.5 | “Failure”                means the breakage, injury, malfunction, or wear and tear of a Part                rendering it unserviceable and incapable of continued operation without                corrective action. |
|--------|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.2.6 | “Resultant                Damage” means the damage suffered by a Part because of the Failure of                another Part within the same Engine. |
|--------|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.2.7 | Multiple                in-flight shutdowns of the same Eligible Engine during the same flight                leg                shall be considered one Eligible In-Flight Shutdown. Subsequent in-flight                shutdowns on subsequent flight legs or flights for the same problem                shall                not be considered Eligible In-Flight Shutdowns if Northwest fails                to take                effective corrective action following each in-flight shutdown. |
|--------|-------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.3.1 | VENDOR                shall calculate the credit allowance following each Annual Period,                on a                cumulative basis, in accordance with the formula: |
|--------|-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 2.3.2 | VENDOR                shall issue credits or debits, if any, to Northwest’s account with VENDOR                following calculations for each Annual Period.  If subsequent                calculations show that on a cumulative basis a previously issued                credit                was either insufficient or excessive, VENDOR shall issue an additional                credit or debit to Northwest’s account as applicable. |
|--------|-------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.2.1 | Installation                Delays.  Following a Module Exchange Shop Visit, if the                Northwest experiences installation delays due to nuisance snags such                as                oil leaks, from areas serviced during the agreed to work scope, which                may                be corrected during the installation process, the Northwest shall                correct                and document the snag and will notify the VENDOR of the concern.                The                replacement of dried out o-rings, re-torqueing of lines and hoses,                and                minor adjustments are considered normal engine installation activities.                Any corrective action performed by the Northwest beyond this scope                shall                be invoiced to VENDOR, and stated in man-hours consumed to perform                the                corrective action. The VENDOR shall issue a credit in the amount                equal to                the man-hours consumed multiplied by the labor cost per hour amount                stated                in the agreement in Attachment C, Section 3.1 “Labor Fixed Price Per                Category” under the heading of “Labor For Extra Work”. |
|--------|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.2.2 | VENDOR                shall implement a corrective action plan to monitor and reduce the                number                of nuisance snags reported, and will communicate the corrective action                plan, ongoing status, and resolution to Northwest. |
|--------|-------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.2.3 | This                corrective maintenance support will not apply if the engine has been                held                as a spare prior to installation and was not maintained in accordance                with                the preservation and storage instructions in the PAH engine manual,                or if                Northwest has performed any work on the engine, including removal                of parts                for line maintenance purposes, and where the nuisance snags were                related                to that work. |
|--------|-------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.3 | On                Wing First Test Pass Rate |
|--------|-----|---------------------------------------------|

|   | 3.3.1 | VENDOR                guarantees to Northwest that at the time of delivery of an Engine                by                VENDOR following the Module Exchange Shop Visit for such engine during                the                term of the ERHP, such engine will be able to be installed on the                aircraft, and will exhibit an On Wing Test Pass Rate of 97.5%. |
|--------|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.3.2 | On                Wing First Test Pass Rate shall be calculated as a rolling 50 engine                average, as follows |
|--------|-------|---------------------------------------------------------------------------------------------------------------------------|

|   | 3.3.4 | If                the On Wing First Test Pass Rate falls below the guarantee in Section                3.3.1 of this Attachment, VENDOR shall implement a corrective action                plan,                at no additional cost to Northwest, to eliminate the root causes                of the                test failures. Such corrective action plan shall include a test cell                run                and other tasks as may be determined by VENDOR prior to delivery,                which                will continue until the performance metric reaches the On Wing First                Test                Pass Rate guarantee or a shorter interval of time as may be mutually                agreed to between the Operator and VENDOR, based on the type of corrective                actions taken and nature of the root cause test failures. This corrective                action plan will commence beginning with the next scheduled Engine                removed                for Module Exchange Shop Visit. The VENDOR will communicate the plan,                ongoing status, and resolution to Northwest. |
|--------|-------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 3.3.5 | This                guarantee will not apply if the test failure is caused by an unserviceable                LRU received on the Engine, which was not repaired as part of the                module                exchange work scope, or if Northwest has performed any maintenance                on the                Engine after delivery from VENDOR, and if the failure is attributable                to                the work performed by Northwest. |
|--------|-------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.0 | WARRANTIES |
|-----|------------|

|   | 4.1 | Warranty.                VENDOR warrants that Services performed under this Agreement will,                at time                of Redelivery, be free from defects in workmanship for a period of                [***]                from Redelivery of Engine or LRU, or [***] hours of operation of                the                Engine or LRU, whichever shall first occur. If Northwest claims a                defect                in workmanship within such period and (a) Northwest                provides written                notice to                VENDOR                of such defect within                [***] of its discovery, (b) Northwest                ships the defective Engine or LRUtoVENDOR,                or makes such Engine or LRU                reasonably available to                VENDOR’s                personnel, and (c) If                Northwest’s claim is correct, VENDOR shall repair or replace such                defective workmanship at no cost to Northwest or, upon prior written                approval from VENDOR, VENDOR shall pay Northwest’s reasonable, direct                costs for such repairs. If requested by VENDOR, Northwest shall ship                such                defective Engine or LRU to the location specified by VENDOR and VENDOR                shall reimburse Northwest for its actual freight, tax, duty and custom                charges in connection with the transportation of such item to VENDOR                and                VENDOR shall at its expense Redelivery the repaired Engine or LRU                to                Northwest. If such warranty claim is subsequently determined by both                parties to be not valid, Northwest shall pay actual freight, tax,                duty and                custom charges in connection with the transportation of such item                to and                from VENDOR. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 4.2 | Resultant                Damage. During the warranty period specified in Paragraph 3.1                above, VENDOR agrees that in the event any Engine or LRU suffers                Resultant                Damage, VENDOR shall restore the damaged Engine or LRU to serviceable                condition equivalent to that immediately preceding the damage at                no cost                to Northwest unless the Resultant Damage is due to a defect in Northwest                supplied material and/or an PAH part. The warranty period on any                such                repaired or replaced Engine or LRU shall be the unexpired portion                of the                warranty on the initially repaired item.   In no event                shall VENDOR be liable for indirect or consequential damages of any                kind                or nature and the obligation to repair the resulting Engine or LRU                damage                is the sole and exclusive remedy of Northwest in the event of defective                workmanship. |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 4.3 | Warranty                Limitations.                This warranty is applicable only if, following re-delivery,                the                Engine or LRU (a) has been                transported, stored, installed, operated, handled, maintained, and                repaired in accordance with all applicable ADs (only for                such ADs that                are due for                compliance) and the                Northwest Maintenance                Program, (b)                has not been altered,                modified or repaired by anyone other than VENDOR or any of its affiliates                or subcontractors or Northwest, and (c) has not been subjected to                FOD,                accident, misuse, abuse or neglect. VENDOR's                liability in connection with                the Service of Engines is expressly limited to its own or its                subcontractor’s                workmanship. Any warranty for                Engines or parts, LRUs,                components and material thereof,                including without limitation the design,                material or                engineering defects of a manufacturer, will be the warranty, if any,                of                the manufacturer of such Engines or parts, LRUs,                components or material                thereof. |
|--------|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | 4.4 | Repairs                Performed by                Northwest. When warranty repairs necessitate the performance of                such repair by Northwest to avoid an operational impact, Northwest                may                perform such work and invoice VENDOR at the rates specified in Attachment                C of this Agreement for credit against future invoices. |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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| Aircraft                Tail Number | Engine                Serial Number | Previous                Engine Hours | Previous                Engine Cycles | Current                Engine Hours | Current                Engine Cycles | Monthly                Flight Hours | Monthly                Flight Cycles | Current                Hourly Rate | Total                Charge |
|-------------------------------------|-------------------------------------|--------------------------------------|---------------------------------------|-------------------------------------|--------------------------------------|-------------------------------------|--------------------------------------|------------------------------------|-----------------------------|
|                                     |                                     |                                      |                                       |                                     |                                      |                                     |                                      |                                    |                             |
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| All                other terms of the Agreement remain unchanged and in full force and                effect                and are hereby restated by VENDOR and Northwest. |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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