Document:

<PAGE>

                                  EXHIBIT A

                                      to

                       AIRCRAFT GENERAL TERMS AGREEMENT

                                   AGTA-HWI

                                   between

                              THE BOEING COMPANY

                                     and

                           Hawaiian Airlines, Inc.

                BUYER FURNISHED equipment provisions document

<PAGE>

                BUYER FURNISHED EQUIPMENT PROVISIONS DOCUMENT

1.    General.

      Certain equipment to be installed in the Aircraft is furnished to Boeing
by Customer at Customer's expense. This equipment is designated "Buyer Furnished
Equipment" (BFE) and is listed in the Detail Specification. Boeing will provide
to Customer a BFE Requirements On-Dock/Inventory Document (BFE Document) or an
electronically transmitted BFE Report which may be periodically revised, setting
forth the items, quantities, on-dock dates and shipping instructions relating to
the in sequence installation of BFE as described in the applicable Supplemental
Exhibit to this Exhibit A in a purchase agreement at the time of aircraft
purchase.

2.    Supplier Selection.

      Customer will:

      2.1 Select and notify Boeing of the suppliers of BFE items by those dates
appearing in Supplemental Exhibit BFE1to the applicable purchase agreement at
the time of aircraft purchase.

      2.2 Meet with Boeing and such selected BFE suppliers promptly after such
selection to:

            2.2.1 complete BFE configuration design requirements for such
BFE; and

            2.2.2 confirm technical data submittal requirements for BFE
certification.

3.    Customer's Obligations.

      Customer will:

      3.1 comply with and cause the supplier to comply with the provisions of
the BFE Document or BFE Report;

            3.1.1 deliver technical data (in English) to Boeing as required to
support installation and FAA certification in accordance with the schedule
provided by Boeing or as mutually agreed upon during the BFE meeting referenced
in Article 2.2 above;

            3.1.2 deliver BFE including production and/or flight training spares
and BFE Aircraft Software to Boeing in accordance with the quantities and
schedule provided

                                      A-1
<PAGE>

 therein or as mutually agreed during the BFE meeting referenced in Article
2.2 above; and

            3.1.3 assure that all BFE Aircraft Software is delivered in
compliance with Boeing's then-current Standards for Loadable Systems;

            3.1.4 assure that all BFE parts are delivered to Boeing with
appropriate quality assurance documentation;

      3.2 authorize Boeing to discuss all details of the BFE directly with the
BFE suppliers________________________________;

      3.3 authorize Boeing to conduct or delegate to the supplier quality source
inspection and supplier hardware acceptance of BFE at the supplier location;

            3.3.1 require supplier's contractual compliance to Boeing defined
quality assurance requirements, source inspection programs and supplier
delegation programs, including availability of adequate facilities for Boeing
resident personnel; and

            3.3.2 assure that all BFE supplier's quality systems are approved to
Boeing's then current standards for such systems ;

      3.4 obtain from supplier a non-exclusive, perpetual, royalty-free,
irrevocable license for Boeing to copy BFE Aircraft Software. The license is
needed to enable Boeing to load the software copies in (i) the aircraft's mass
storage device (MSD), (ii) media (e.g., diskettes, CD-ROMs, etc.), (iii) the BFE
hardware and/or (iv) an intermediate device or other media to facilitate copying
of the BFE Aircraft Software into the aircraft's MSD, BFE hardware and/or media,
including media as Boeing may deliver to Customer with the aircraft;

      3.5 grant Boeing a license, extending the same rights set forth in
paragraph 3.4 above, to copy: a) BFE Aircraft Software and data Customer has
modified and/or b) other software and data Customer has added to the BFE
Aircraft Software;

      3.6 provide necessary field service representation,
______________________, at Boeing's facilities to support Boeing on all issues
related to the installation and certification of BFE;

      3.7 deal directly with all BFE suppliers to obtain overhaul data,
provisioning data, related product support documentation and any warranty
provisions applicable to the BFE;

                                      A-2
<PAGE>

      3.8 work closely with Boeing and the BFE suppliers to resolve any
difficulties, including defective equipment, that arise;

      3.9 be responsible for modifying, adjusting and/or calibrating BFE as
required for FAA approval and for all reasonable related expenses;

      3.10 assure that a proprietary information agreement is in place between
Boeing and BFE suppliers prior to Boeing providing any documentation to such
suppliers;

      3.11 warrant that the BFE will comply with all applicable FARs and the
U.S. Food and Drug Administration (FDA) sanitation requirements for installation
and use in the Aircraft at the time of delivery. Customer will be responsible
for supplying any data and adjusting, calibrating, re-testing or updating such
BFE and data to the extent necessary to obtain applicable FAA and FDA approval
and shall bear the resulting expenses;

      3.12  warrant that the BFE will meet the requirements of the Detail
Specification; and

      3.13 be responsible for providing equipment which is FAA certifiable at
time of Aircraft delivery, or for obtaining waivers from the applicable
regulatory agency for non-FAA certifiable equipment.

4.    Boeing's Obligations.

      Other than as set forth below, Boeing will provide for the installation of
and install the BFE and obtain certification of the Aircraft with the BFE
installed.

5.    Nonperformance by Customer.

      If Customer's nonperformance of obligations in this Exhibit or in the BFE
Document causes a delay in the delivery of the Aircraft or causes Boeing to
perform out-of-sequence or additional work, Customer will reimburse Boeing for
all resulting reasonable expenses and be deemed to have agreed to any such delay
in Aircraft delivery. In addition Boeing will have the right to:

      5.1 provide and install specified equipment or suitable alternate
equipment subject to agreement from Customer, and increase the price of the
Aircraft accordingly; and/or

     5.2 deliver the Aircraft to Customer without the BFE installed.

                                      A-3
<PAGE>

6.    Return of Equipment.

      BFE not installed in the Aircraft will be returned to Customer in
accordance with Customer's instructions and at Customer's expense______________.

7. Title and Risk of Loss.

      7.1 With respect to Aircraft manufactured in the State of Washington,
title to and risk of loss of BFE provided for such Aircraft will at all times
remain with Customer or other owner. Boeing will have only such liability for
BFE as a bailee for mutual benefit would have, but will not be liable for loss
of use.

      7.2 With respect to Aircraft manufactured in the State of California,
Customer agrees to sell and Boeing agrees to purchase each item of BFE
concurrently with its delivery to Boeing. A reasonable shipset price for the BFE
shall be established with Customer. Customer and Boeing agree that the Aircraft
Price will be increased by the amount of said shipset price and such amount will
be included on Boeing's invoice at time of Aircraft delivery. Boeing's payment
for the purchase of each shipset of BFE from Customer will be made at the time
of delivery of the Aircraft in which the BFE is installed.

8.    Interchange of BFE

      To properly maintain Boeing's production flow and to preserve Boeing's
delivery commitments, Boeing reserves the right, if necessary, due to equipment
shortages or failures, to interchange new items of BFE acquired from or for
Customer with new items of the same part numbers acquired from or for other
customers of Boeing. Used BFE acquired from Customer or from other customers of
Boeing will not be interchanged.

9.    Indemnification of Boeing.

      Customer hereby indemnifies and holds harmless Boeing from and against all
claims and liabilities, including costs and expenses (including attorneys' fees)
incident thereto or incident to successfully establishing the right to
indemnification, for injury to or death of any person or persons, including
employees of Customer but not employees of Boeing, or for loss of or damage to
any property, including any Aircraft, arising out of or in any way connected
with any nonconformance or defect in any BFE and whether or not arising in tort
or occasioned by the negligence of Boeing. This indemnity will not apply with
respect to any nonconformance or defect caused solely by Boeing's installation
of the BFE.

                                      A-4
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10.   Patent Indemnity.

      Customer hereby indemnifies and holds harmless Boeing from and against all
claims, suits, actions, liabilities, damages and costs arising out of any actual
or alleged infringement of any patent or other intellectual property rights by
BFE or arising out of the installation, sale or use of BFE by Boeing.

        _______________________________________.

            (i) ________________________________________________________.

            (ii) ________________________________________________________.

11.   Definitions.

      For the purposes of the above indemnities, the term "Boeing" includes The
Boeing Company, its divisions, subsidiaries and affiliates, the assignees of
each, and their directors, officers, employees and agents.

                                      A-5
<PAGE>

                                  EXHIBIT B

                                      to

                       AIRCRAFT GENERAL TERMS AGREEMENT

                                   AGTA-HWI

                                   between

                              THE BOEING COMPANY

                                     and

                           Hawaiian Airlines, Inc.

                          CUSTOMER SUPPORT DOCUMENT

                           This document contains:

         Part 1:  Maintenance and Flight Training Programs; Operations
                  Engineering Support

         Part 2:  Field Services and Engineering Support
                  Services

         Part 3:  Technical Information and Materials

         Part 4:  Alleviation or Cessation of Performance

         Part 5:  Protection of Proprietary Information and
                  Proprietary Materials

                               B

<PAGE>

                          CUSTOMER SUPPORT DOCUMENT

                PART 1: BOEING MAINTENANCE AND FLIGHT TRAINING
                   PROGRAMS; OPERATIONS ENGINEERING SUPPORT

1.    Boeing Training Programs.

      1.1 Boeing will provide maintenance training and flight training programs
to support the introduction of a specific model of aircraft into service. The
training programs will consist of general and specialized courses and will be
described in a Supplemental Exhibit to the applicable purchase agreement.
__________________________________.

      1.2 Boeing will conduct all training at Boeing's primary training facility
for the model of aircraft purchased unless otherwise mutually agreed.

      1.3 All training will be presented in the English language. If translation
is required, Customer will provide interpreters.

      1.4 Customer will be responsible for all expenses of Customer's personnel.
Boeing will transport Customer's personnel between their local lodging and
Boeing's training facility.

2.    Training Planning Conferences.

      Customer and Boeing will conduct planning conferences at a mutually agreed
time, approximately 12 months before the scheduled delivery month of the first
aircraft of a model to define and schedule the maintenance and flight training
programs.

3.    Operations Engineering Support.

      3.1 As long as an aircraft purchased by Customer from Boeing is operated
by Customer in scheduled revenue service, Boeing will provide operations
engineering support. Such support will include:

            3.1.1 assistance with the analysis and preparation of performance
data to be used in establishing operating practices and policies for Customer's
operation of aircraft;

            3.1.2 assistance with interpretation of the minimum equipment list,
the definition of the configuration deviation list and the analysis of
individual aircraft performance;

                                      B-1
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            3.1.3 assistance with solving operational problems associated with
delivery and route-proving flights;

            3.1.4 information regarding significant service items relating to
aircraft performance or flight operations; and

            3.1.5 if requested by Customer, Boeing will provide operations
engineering support during an aircraft ferry flight.

4.    Training at a Facility Other Than Boeing's.

      If requested by Customer, Boeing will conduct the classroom portions of
the maintenance and flight training (except for the Performance Engineer
training courses) at a mutually acceptable alternate training site, subject to
the following conditions:

      4.1 Customer will provide acceptable classroom space, simulators (as
necessary for flight training) and training equipment as reasonably required by
Boeing to present the courses;

      4.2 Customer will pay Boeing's then-current per diem charge for each
Boeing instructor for each day, or fraction thereof, that the instructor is away
from their home location , including travel time;

      4.3 Customer will reimburse Boeing for the actual costs of round-trip
transportation, coach class (unless otherwise agreed by Customer), for Boeing's
instructors and the shipping costs of training Materials between the primary
training facility and the alternate training site;

      4.4 Customer will be responsible for all taxes, fees, duties, licenses,
permits and similar expenses incurred by Boeing and its employees as a result of
Boeing's providing training at the alternate site or incurred as a result of
Boeing providing revenue service training; and

      4.5 Those portions of training that require the use of training devices
not available at the alternate site will be conducted at Boeing's facility or at
some other alternate site.

5.    General Terms and Conditions.

      5.1 Boeing flight instructor personnel will not be required to work more
than 5 days per week, or more than 8 hours in any one 24-hour period, of which
not more than 5 hours per 8-hour workday will be spent in actual flying. These
foregoing restrictions will not apply to ferry assistance or revenue service
training services, which will be governed by FAA rules and regulations.

                                      B-2
<PAGE>

      5.2 Normal Line Maintenance is defined as line maintenance that Boeing
might reasonably be expected to furnish for flight crew training at Boeing's
facility, and will include ground support and aircraft storage in the open, but
will not include provision of spare parts. Boeing will provide Normal Line
Maintenance services for any aircraft while the aircraft is used for flight crew
training at Boeing's facility in accordance with the Boeing Maintenance Plan
(Boeing document D6-82076) and the Repair Station Operation and Inspection
Manual (Boeing document D6-25470). Customer will provide such services if flight
crew training is conducted elsewhere. Regardless of the location of such
training, Customer will be responsible for providing all maintenance items
(other than those included in Normal Line Maintenance) required during the
training, including, but not limited to, fuel, oil, landing fees and spare
parts.

      5.3 If the training is based at Boeing's facility, and the aircraft is
damaged during such training, Boeing will make all necessary repairs to the
aircraft as promptly as possible. Customer will pay Boeing's reasonable charge,
including the price of parts and materials, for making the repairs. If Boeing's
estimated labor charge for the repair exceeds $25,000, Boeing and Customer will
enter into an agreement for additional services before beginning the repair
work.

      5.4 If the flight training is based at Boeing's facility, several airports
in surrounding states may be used, at Boeing's option. Unless otherwise agreed
in the flight training planning conference, it will be Customer's responsibility
to make arrangements for the use of such airports.

      5.5 If Boeing agrees to make arrangements on behalf of Customer for the
use of airports for flight training, Boeing will pay on Customer's behalf any
landing fees charged by any airport used in conjunction with the flight
training. At least 30 days before flight training, Customer will provide Boeing
an open purchase order against which Boeing will invoice Customer for any
landing fees Boeing paid on Customer's behalf. The invoice will be submitted to
Customer approximately 60 days after flight training is completed, when all
landing fee charges have been received and verified. Customer will pay the
amount of such invoice to Boeing within 30 days of the date of the invoice.

      5.6 If requested by Boeing, and agreed by Customer, in order to provide
the flight training or ferry flight assistance, Customer will make available to
Boeing an aircraft after delivery to familiarize Boeing instructor or ferry
flight crew personnel with such aircraft. If flight of the aircraft is required
for any Boeing instructor or ferry flight crew member to maintain an FAA license
for flight proficiency or landing currency, Boeing will be responsible for the
costs of fuel, oil, landing fees and spare parts attributable to that portion of
the flight.

      5.7 If any part of the training described in paragraph 1.1 of this Exhibit
is not used by Customer within 12 months after the delivery of the last aircraft
under the relevant purchase agreement, Boeing will not be obligated to provide
such training.

                                      B-3
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                          CUSTOMER SUPPORT DOCUMENT

                PART 2: FIELD AND ENGINEERING SUPPORT SERVICES

1.    Field Service Representation.

      Boeing will furnish field service representation to advise Customer with
respect to the maintenance and operation of an aircraft (Field Service
Representatives).

      1.1 Field Service representation will be available at Customer's main
maintenance or engineering facility beginning no later than one week before the
scheduled delivery month of the first aircraft and ending 12 months after
delivery of the last aircraft covered by a specific purchase agreement.

      1.2 Customer will provide, at no charge to Boeing, suitable furnished
office space and office equipment at the location where Boeing is providing
Field Service Representatives. As reasonably required, Customer will assist each
Field Service Representative with visas, work permits, customs, mail handling,
identification passes and formal introduction to local airport authorities.

      1.3 Boeing Field Service Representatives are assigned to various airports
around the world. Whenever Customer's aircraft are operating through any such
airport, the services of Boeing's Field Service Representatives are available to
Customer.

2.    Engineering Support Services.

      Boeing  will,  if  requested by  Customer,  provide  technical  advisory
assistance  __________________________________  for any  aircraft  and  Boeing
Product      (as      defined     in     Part     I     of     Exhibit     C).
_____________________________________________________.   Engineering   Support
Services,  provided from the Seattle area or at a base  designated by Customer
as appropriate, will include:

      2.1 Operational Problem Support. If Customer experiences operational
problems with an aircraft, Boeing will analyze the information provided by
Customer to determine the probable nature and cause of the problem and to
suggest possible solutions.

      2.2 Schedule Reliability Support. If Customer is not satisfied with the
schedule reliability of a specific model of aircraft, Boeing will analyze
information provided by Customer to determine the nature and cause of the
problem and to suggest possible solutions.

                                      B2-1
<PAGE>

      2.3 Maintenance Cost Reduction Support. If Customer is concerned that
actual maintenance costs of a specific model of aircraft are excessive, Boeing
will analyze information provided by Customer to determine the nature and cause
of the problem and to suggest possible solutions.

      2.4 Aircraft Structural Repair Support. If Customer is designing
structural repairs and desires Boeing's support, Boeing will analyze and comment
on Customer's engineering releases relating to structural repairs not covered by
Boeing's Structural Repair Manual.

      2.5 Aircraft Modification Support. If Customer is designing aircraft
modifications and requests Boeing's support, Boeing will analyze and comment on
Customer's engineering proposals for changes in, or replacement of, systems,
parts, accessories or equipment manufactured to Boeing's detailed design. Boeing
will not analyze or comment on any major structural change unless Customer's
request for such analysis and comment includes complete detailed drawings,
substantiating information (including any information required by applicable
government agencies), all stress or other appropriate analyses, and a specific
statement from Customer of the substance of the review and the response
requested.

      2.6 Facilities, Ground Equipment and Maintenance Planning Support. Boeing
will, at Customer's request, _____________________________, evaluate Customer's
technical facilities, tools and equipment for servicing and maintaining
aircraft, to recommend changes where necessary and to assist in the formulation
of an initial maintenance plan for the introduction of the aircraft into
service.

      2.7 Post-Delivery Service Support. Boeing will, at Customer's request,
perform work on an aircraft after delivery but prior to the initial departure
flight or upon the return of the aircraft to Boeing's facility prior to
completion of that flight. In that event the following provisions will apply.

            2.7.1 Boeing may rely upon the commitment authority of the
Customer's personnel requesting the work.

            2.7.2 As title and risk of loss has passed to Customer, the
insurance provisions of Article 8.2 of the AGTA apply.

            2.7.3 The provisions of the Boeing Warranty in Part 2 of Exhibit C
of this AGTA apply.

            2.7.4 Customer will pay Boeing for requested work not covered by the
Boeing Warranty, if any.

                                      B2-2
<PAGE>

            2.7.5 The DISCLAIMER AND RELEASE and EXCLUSION OF CONSEQUENTIAL AND
OTHER DAMAGES provisions in Article 11 of Part 2 of Exhibit C of this AGTA
apply.

      2.8 Additional Services. Boeing may, at Customer's request, provide
additional services for an aircraft after delivery, which may include, but not
be limited to, retrofit kit changes (kits and/or information), training, flight
services, maintenance and repair of aircraft. Such additional services will be
subject to a mutually acceptable price, schedule and scope of work. The
DISCLAIMER AND RELEASE and the EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES
provisions in Article 11 of Part 2 of Exhibit C of this AGTA and the insurance
provisions in Article 8.2 of this AGTA will apply to any such work. Title to and
risk of loss of any such aircraft will always remain with Customer.

                                      B2-3
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                          CUSTOMER SUPPORT DOCUMENT

                 PART 3: TECHNICAL INFORMATION AND MATERIALS

1.    General.

      Materials are defined as any and all items that are created by Boeing or a
third party, which are provided directly or indirectly from Boeing and serve
primarily to contain, convey or embody information. Materials may include either
tangible embodiments (for example, documents or drawings), or intangible
embodiments (for example, software and other electronic forms) of information
but excludes Aircraft Software. Aircraft Software is defined as software that is
installed on and used in the operation of the aircraft.

      Boeing will furnish to Customer certain Materials to support the
maintenance and operation of the aircraft at no additional charge to Customer,
except as otherwise provided herein. Such Materials will, if applicable, be
prepared generally in accordance with Air Transport Association of America (ATA)
Specification No. 100, entitled "Specification for Manufacturers' Technical
Data". Materials will be in English and in the units of measure used by Boeing
to manufacture an aircraft.

      Digitally-produced Materials will, if applicable, be prepared generally in
accordance with ATA Specification No. 2100, dated January 1994, "Digital Data
Standards for Aircraft Support."

2.    Materials Planning Conferences.

      Customer and Boeing will conduct planning conferences approximately 12
months before the scheduled delivery month of the first aircraft of a model in
order to mutually determine the proper format and quantity of Materials to be
furnished to Customer in support of the aircraft.

      When available, Customer may select one Boeing digital format as the
delivery medium. Should a Boeing digital format not be chosen, Customer may
select ___________________________, a reasonable quantity of printed and 16mm
microfilm formats, with the exception of the Illustrated Parts Catalog, which
will be provided in one selected format only.

3.   Information and Materials - Incremental Increase.

      Until one year after the month of delivery of the last aircraft covered by
a specific purchase agreement, Customer may annually request in writing a
reasonable increase in the quantity of Materials with the exception of microfilm
master copies, digital formats, and others for which a specified number of
copies are provided. Boeing will provide the additional quantity at no
additional charge beginning with the next normal revision cycle. Customer may
request a decrease in revision quantities at any time.

                                      B3-1
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4.    Advance Representative Copies.

      All advance representative copies of Materials will be selected by Boeing
from available sources. Such advance copies will be for advance planning
purposes only.

5.    Customized Materials.

      All customized Materials will reflect the configuration of each aircraft
as delivered.

6.    Revisions.

      6.1 Revision Service. Boeing will provide revisions free of charge to
certain Materials to be identified in the planning conference described in
paragraph 2 above, conducted for a specific model of aircraft, reflecting
changes developed by Boeing, as long as Customer operates an aircraft of that
model.

      6.2 Revisions Based on Boeing Service Bulletin Incorporation. If Boeing
receives written notice that Customer intends to incorporate, or has
incorporated, any Boeing service bulletin in an aircraft, Boeing will at no
charge issue revisions to Materials with revision service reflecting the effects
of such incorporation into such aircraft.

7.    Computer Software Documentation for Boeing Manufactured Airborne
      Components and Equipment.

      Boeing will provide to Customer a Computer Software Index containing a
listing of (i) all programmed airborne avionics components and equipment
manufactured by Boeing or a Boeing subsidiary, designed and developed in
accordance with Radio Technical Commission for Aeronautics Document No.
RTCA/DO-178 dated January 1982, No. RTCA/DO-178A dated March 1985, or later as
available, and installed by Boeing in aircraft covered by the applicable
purchase agreement and (ii) specific software documents (Software Documentation)
available to Customer from Boeing for the listed components and equipment.

      Two copies of the Computer Software Index will be furnished to Customer
with the first aircraft of a model. Revisions to the Computer Software Index
applicable to such model of aircraft will be issued to Customer as revisions are
developed by Boeing for so long as Customer operates the aircraft.

                                      B3-2
<PAGE>

      Software Documentation will be provided to Customer upon written request.
The charge to Customer for Software Documentation will be Boeing's price to
reproduce the Software Documentation requested. Software Documentation will be
prepared generally in accordance with ATA Specification No. 102 revised April
20, 1983, "Specification for Computer Software Manual" but Software
Documentation will not include, and Boeing will not be obligated to provide, any
code (including, but not limited to, original source code, assembled source
code, or object code) on computer sensible media.

8.    Supplier Technical Data.

      8.1 For supplier-manufactured programmed airborne avionics components and
equipment classified as Seller Furnished Equipment (SFE) or Seller Purchased
Equipment (SPE) or Buyer Designated Equipment (BDE) which contain computer
software designed and developed in accordance with Radio Technical Commission
for Aeronautics Document No. RTCA/DO-178 dated January 1982, No. RTCA/DO-178A
dated March 1985, or later as available, Boeing will request that each supplier
of the components and equipment make software documentation available to
Customer in a manner similar to that described in Article 7 above.

      8.2 The provisions of this Article will not be applicable to items of BFE.

      8.3 Boeing will furnish to Customer a document identifying the terms and
conditions of the product support agreements between Boeing and its suppliers
requiring the suppliers to fulfill Customer's requirements for information and
services in support of the specific model of aircraft.

9.    Buyer Furnished Equipment Data.

      Boeing will incorporate BFE information into the customized Materials
providing Customer makes the information available to Boeing at least nine
months prior to the scheduled delivery month of Customer's first aircraft of a
specific model. Customer agrees to furnish the information in Boeing standard
digital format if Materials are to be delivered in Boeing standard digital
format.

10.   Materials Shipping Charges.

      Boeing will pay the reasonable transportation costs of the Materials.
Customer is responsible for any customs clearance charges, duties, and taxes.

                                      B3-3
<PAGE>

11.   Customer's Shipping Address.

      The Materials furnished to Customer hereunder are to be sent to:

Hawaiian Airlines, Inc.
391 Aokea Street
Honolulu, Hawaii  96819
Attention: Vice President - Maintenance
Customer will promptly notify Boeing of any change to the address.

                                      B3-4
<PAGE>

                          CUSTOMER SUPPORT DOCUMENT

               PART 4: ALLEVIATION OR CESSATION OF PERFORMANCE

Boeing will not be required to provide any Materials, services, training or
other things at a facility designated by Customer if any of the following
conditions exist:

      1. a labor stoppage or dispute in progress involving Customer;

      2. wars or warlike operations, riots or insurrections in the country where
the facility is located;

      3. any condition at the facility which, in the reasonable opinion of
Boeing, is detrimental to the general health, welfare or safety of its personnel
or their families;

      4. the United States Government refuses permission to Boeing personnel or
their families to enter into the country where the facility is located, or
recommends that Boeing personnel or their families leave the country; or

      5. the United States Government refuses permission to Boeing to deliver
Materials, services, training or other things to the country where the facility
is located.

After the location of Boeing personnel at the facility, Boeing further reserves
the right, upon the occurrence of any of such events, to immediately and without
prior notice to Customer relocate its personnel and their families. In the event
of an alleviation or cessation of performance under this Part 4, Boeing and
Customer shall discuss alternatives that would allow for continuation of
Boeing's support under this Exhibit B.

                                      B4-1
<PAGE>

                          CUSTOMER SUPPORT DOCUMENT

                PART 5: PROTECTION OF PROPRIETARY INFORMATION
                          AND PROPRIETARY MATERIALS

1.    General.

      All Materials provided by Boeing to Customer and not covered by a Boeing
CSGTA or other agreement between Boeing and Customer defining Customer's right
to use and disclose the Materials and included information will be covered by,
and subject to the terms of this AGTA. Title to all Materials containing,
conveying or embodying confidential, proprietary or trade secret information
(Proprietary Information) belonging to Boeing or a third party (Proprietary
Materials), will at all times remain with Boeing or such third party. Customer
will treat all Proprietary Materials and all Proprietary Information in
confidence and use and disclose the same only as specifically authorized in this
AGTA.

2.    License Grant.

      ____________________________, Boeing grants to Customer a worldwide,
non-exclusive, non-transferable license to use and disclose Proprietary
Materials in accordance with the terms and conditions of this AGTA. Customer is
authorized to make copies of Materials (except for Materials bearing the
copyright legend of a third party), and all copies of Proprietary Materials will
belong to Boeing and be treated as Proprietary Materials under this AGTA.
Customer will preserve all proprietary legends, and all copyright notices on all
Materials and insure the inclusion of those legends and notices on all copies.

3. Use of Proprietary Materials and Proprietary Information.

      Customer is authorized to use Proprietary Materials and Proprietary
Information for the purpose of: (a) operation, maintenance, repair, or
modification of Customer's aircraft for which the Proprietary Materials and
Proprietary Information have been specified by Boeing and (b) development and
manufacture of training devices and maintenance tools for use by Customer.

4. Providing of Proprietary Materials to Contractors.

      Customer is authorized to provide Proprietary Materials to Customer's
contractors for the sole purpose of maintenance, repair, or modification of
Customer's aircraft for which the Proprietary Materials have been specified by
Boeing. In addition, Customer may provide Proprietary Materials to Customer's
contractors for the sole purpose of developing and manufacturing training
devices and maintenance tools for Customer's use. Before providing Proprietary
Materials to its contractor, Customer will first obtain a written agreement from
the contractor by which the contractor agrees (a) to use the Proprietary
Materials only on behalf of Customer, (b) to be bound by all of the restrictions
and limitations of this Part 5, and (c) that Boeing is a third party beneficiary
under the written agreement. Customer agrees to provide copies of all such
written agreements to Boeing upon request and be liable to Boeing for any breach
of those agreements by a contractor. A sample agreement acceptable to Boeing is
attached as Appendix VII.

                                      B5-1
<PAGE>

5.    Providing of Proprietary Materials and Proprietary Information to
      Regulatory Agencies.

      When and to the extent required by a government regulatory agency having
jurisdiction over Customer or an aircraft, Customer is authorized to provide
Proprietary Materials and to disclose Proprietary Information to the agency for
use in connection with Customer's operation, maintenance, repair, or
modification of such aircraft. Customer agrees to take all reasonable steps to
prevent the agency from making any distribution, disclosure, or additional use
of the Proprietary Materials and Proprietary Information provided or disclosed.
Customer further agrees to notify Boeing immediately upon learning of any (a)
distribution, disclosure, or additional use by the agency, (b) request to the
agency for distribution, disclosure, or additional use, or (c) intention on the
part of the agency to distribute, disclose, or make additional use of
Proprietary Materials or Proprietary Information.

                                      B5-2
<PAGE>

                                  EXHIBIT C

                                      to

                       AIRCRAFT GENERAL TERMS AGREEMENT

                                   AGTA-HWI

                                   between

                              THE BOEING COMPANY

                                     and

                           Hawaiian Airlines, Inc.

                          PRODUCT ASSURANCE DOCUMENT

                           This document contains:

            Part 1:     Exhibit C Definitions

            Part 2:     Boeing Warranty

            Part 3:     Boeing Service Life Policy

            Part 4:     Supplier Warranty Commitment

            Part 5:     Boeing Interface Commitment

            Part 6:     Boeing Indemnities against Patent and Copyright
                        Infringement

                                       C
<PAGE>

                          PRODUCT ASSURANCE DOCUMENT

                        PART 1: EXHIBIT C DEFINITIONS

      Authorized Agent - Agent appointed by Customer to perform corrections and
to administer warranties (see Appendix VI to the AGTA for a form acceptable to
Boeing).

      Average Direct Hourly Labor Rate - the average hourly rate (excluding all
fringe benefits, premium-time allowances, social charges, business taxes and the
like) paid by Customer to its Direct Labor employees.

      Boeing Product - any system, accessory, equipment, part or Aircraft
Software that is manufactured by Boeing or manufactured to Boeing's detailed
design with Boeing's authorization.

      Correct - to repair, modify, provide modification kits or replace with a
new product.

      Correction - a repair, a modification, a modification kit or replacement
with a new product.

      Corrected Boeing Product - a Boeing Product which is free of defect as a
result of a Correction.

      Direct Labor - Labor spent by Customer's direct labor employees to remove,
disassemble, modify, repair, inspect and bench test a defective Boeing Product,
and to reassemble, reinstall a Corrected Boeing Product and perform final
inspection.

      Direct Materials - Items such as parts, gaskets, grease, sealant and
adhesives, installed or consumed in performing a Correction, excluding
allowances for administration, overhead, taxes, customs duties and the like.

      Source Control Drawing (SCD) - a Boeing document defining specifications
for certain Supplier Products.

      Supplier - the manufacturer of a Supplier Product.

      Supplier Product - any system, accessory, equipment, part or Aircraft
Software that is not manufactured to Boeing's detailed design. This includes but
is not limited to parts manufactured to a SCD, all standards, and other parts
obtained from non-Boeing sources.

                                      C1-1
<PAGE>

                          PRODUCT ASSURANCE DOCUMENT

                           PART 2: BOEING WARRANTY

1.    Applicability.

      This warranty applies to all Boeing Products. Warranties applicable to
Supplier Products are in Part 4. Warranties applicable to engines will be
provided by Supplemental Exhibits to individual purchase agreements.

2.    Warranty.

      2.1 Coverage. Boeing warrants that at the time of delivery:

            (i)   the aircraft will conform to the Detail Specification except
                  for portions stated to be estimates, approximations or design
                  objectives;

            (ii)  all Boeing Products will be free from defects in material,
                  process of manufacture and workmanship, including the
                  workmanship utilized to install Supplier Products, engines and
                  BFE, and;

            (iii) all Boeing Products will be free from defects in design,
                  including selection of materials and the process of
                  manufacture, in view of the state of the art at the time of
                  design

      2.2 Exceptions. The following conditions do not constitute a defect under
this warranty:

            (i)   conditions resulting from normal wear and tear;

            (ii) conditions resulting from Customer's misuse, abuse neglect or
omissions; and

            (iii) conditions resulting from failure to properly service and
                  maintain a Boeing Product .

3.    Warranty Periods.

      3.1 Warranty. The warranty period begins on the date of aircraft or Boeing
Product delivery and ends: (i) after 48 months for Boeing aircraft models
777-200, -300 or 737-600, -700, -800, or new aircraft models designed and
manufactured with similar, new technology; or, (ii) after 36 months for any
other Boeing aircraft model.

                                      C2-1
<PAGE>

      3.2 Warranty on Corrected Boeing Products. The warranty period applicable
to a Corrected Boeing Product, including the workmanship to Correct and install,
resulting from a defect in material or workmanship is the remainder of the
initial warranty period for the defective Boeing Product it replaced. The
warranty period for a Corrected Boeing Product resulting from a defect in design
is 18 months or the remainder of the initial warranty period, whichever is
longer. The 18 month period begins on the date of delivery of the Corrected
Boeing Product or date of delivery of the kit or kits furnished to Correct the
Boeing Product.

      3.3 Survival of Warranties. All warranty periods are stated above. The
Performance Guarantees will not survive delivery of the aircraft.

4.    Remedies.

      4.1 Correction Options. Customer may, at its option, either perform a
Correction of a defective Boeing Product or return the Boeing Product to Boeing
for Correction.

      4.2 Warranty Labor Rate. If Customer or its Authorized Agent Corrects a
defective Boeing Product, Boeing will reimburse Customer for Direct Labor Hours
at Customer's established Warranty Labor Rate. Customer's established Warranty
Labor Rate will be the greater of the standard labor rate or 150% of Customer's
Average Direct Hourly Labor Rate. The standard labor rate paid by Boeing to its
customers is established and published annually. Prior to or concurrently with
submittal of Customer's first claim for Direct Labor reimbursement, Customer may
notify Boeing of Customer's then-current Average Direct Hourly Labor Rate, and
thereafter notify Boeing of any material change in such rate. Boeing will
require information from Customer to substantiate such rates.

      4.3 Warranty Inspections. In addition to the remedies to Correct defects
in Boeing Products, Boeing will reimburse Customer for the cost of Direct Labor
to perform certain inspections of the aircraft to determine the occurrence of a
condition Boeing has identified as a covered defect, provided:

            4.3.1 the inspections _______________________________________ are
recommended by a service bulletin or service letter issued by Boeing during the
warranty period; and

            4.3.2 such reimbursement will not apply to any inspections performed
after a Correction is available to Customer.

      4.4 Credit Memorandum Reimbursement. Boeing will make all reimbursements
by credit memoranda which may be applied toward the purchase of Boeing goods and
services.

                                      C2-2
<PAGE>

      4.5 Maximum Reimbursement. Unless previously agreed, the maximum
reimbursement for Direct Labor and Direct Materials used to Correct a defective
Boeing Product will not exceed 65% of Boeing's then-current sales price for a
new replacement Boeing Product. If the estimate to correct a defective Boeing
Product exceeds 65% of the replacement price of a new part, Boeing will either
provide a credit to Customer at 65% of the replacement price of a new part or a
new replacement part, at Customer's option.

5.    Discovery and Notice.

      5.1 For a claim to be valid:

            (i)   the defect must be  discovered  during the warranty  period;
                  and

            (ii)  Boeing Warranty must receive written notice of the discovery
                  no later than 90 days after expiration of the warranty period.
                  The notice must include sufficient information to substantiate
                  the claim.

      5.2 Receipt of Customer's or its Authorized Agent's notice of the
discovery of a defect secures Customer's rights to remedies under this Exhibit
C, even though a Correction is performed after the expiration of the warranty
period.

      5.3 Once Customer has given valid notice of the discovery of a defect, a
claim should be submitted as soon as practicable after performance of the
Correction.

      5.4 Boeing may release service bulletins or service letters advising
Customer of the availability of certain warranty remedies. When such advice is
provided, Customer will be deemed to have fulfilled the requirements for
discovery of the defect and submittal of notice under this Exhibit C as of the
date specified in the service bulletin or service letter.

6.    Filing a Claim.

      6.1 Authority to File. Claims may be filed by Customer or its Authorized
Agent. Appointment of an Authorized Agent will only be effective upon Boeing's
receipt of the Authorized Agent's express written agreement, in a form
satisfactory to Boeing, to be bound by and to comply with all applicable terms
and conditions of this Aircraft General Terms Agreement.

      6.2   Claim Information.

            6.2.1 Claimant is responsible for providing sufficient information
to substantiate Customer's rights to remedies under this Exhibit C. Boeing may
reject a claim for lack of sufficient information. At a minimum, such
information must include:

                                      C2-3
<PAGE>

                  (i)    identity of claimant;

                  (ii)   serial or block number of the aircraft on which the
                         defective Boeing Product was delivered;

                  (iii)  part number and nomenclature of the defective Boeing
                         Product;

                  (iv)   purchase order number and date of delivery of the
                         defective spare part, as applicable

                  (v)    description and substantiation of the defect;

                  (vi)   date the defect was discovered;

                  (vii)  date the Correction was completed;

                  (viii) the total flight hours or cycles accrued;

                  (ix)  an itemized account of direct labor hours expended in
                        performing the Correction; and
                  (x)   an itemized account of any direct materials incorporated
                        in the Correction.

            6.2.2 Additional information may be required based on the nature of
the defect and the remedies requested.

      6.3   Boeing Claim Processing.

            6.3.1 Any claim for a Boeing Product returned by Customer or its
Authorized Agent to Boeing for Correction must accompany the Boeing Product. Any
claim not associated with the return of a Boeing Product must be signed and
submitted in writing directly by Customer or its Authorized Agent to Boeing
Warranty.

            6.3.2 Boeing will promptly review the claim and will give diligent
efforts to give notification of claim approval or rejection within 30 days of
receipt of such claim. If the claim is rejected, Boeing will provide a written
explanation and reasonable substantiation of such rejection.

7. Corrections Performed by Customer or Its Authorized Agent.

      7.1 Facilities Requirements. Provided Customer, its Authorized Agent or
its third party contractor, as appropriate, are certified by the appropriate
Civil Aviation Authority or Federal Aviation Authority, Customer or its
Authorized Agent may, at its option, Correct defective Boeing Products at its
facilities, or may subcontract Corrections to a third party contractor.

                                      C2-4
<PAGE>

      7.2 Technical Requirements. All Corrections done by Customer, its
Authorized Agent or a third party contractor must be performed in accordance
with Boeing's applicable service manuals, bulletins or other written
instructions, using parts and materials furnished or approved by Boeing.

      7.3   Reimbursement.

            7.3.1 Boeing will reimburse Customer's reasonable costs of Direct
Materials and Direct Labor (excluding time expended for overhaul) at Customer's
Warranty Labor Rate to Correct a defective Boeing Product. Claims for
reimbursement must contain sufficient information to substantiate Direct Labor
hours expended and Direct Materials consumed. Customer or its Authorized Agent
may be required to produce invoices for materials.

            7.3.2 Reimbursement for Direct Labor hours to perform Corrections
stated in a service bulletin will be based on the labor estimates in the service
bulletin.

            7.3.3 Boeing will reimburse Customer's freight charges associated
with a Correction of a defect on a Boeing Product performed by its Authorized
Agent or a third party contractor.

      7.4   Disposition  of  Defective  Boeing  Products  Beyond  Economical
Repair.

            7.4.1 A defective Boeing Product found to be beyond economical
repair (see Para. 4.5 Maximum Reimbursement) will be retained for a period of 60
days from the date Boeing receives Customer's claim. During the 60 day period,
Boeing may request return of such Boeing Products for inspection and
confirmation of a defect.

            7.4.2 After the 60 day period, a defective Boeing Product with a
value of U.S. $2000 or less may be scrapped without notification to Boeing. If
such Boeing Product has a value greater than U.S. $2000, Customer must obtain
confirmation of unrepairability by Boeing's on-site Customer Services
Representative prior to scrapping. Confirmation may be in the form of the
Representative's signature on Customer's claim or through direct communication
between the Representative and Boeing Warranty.

8.    Corrections Performed by Boeing.

      8.1 Freight Charges. Customer or its Authorized Agent will pay shipping
charges to return a Boeing Product to Boeing. Boeing will reimburse Customer or
its Authorized Agent for the charge for any item determined to be defective
under this Aircraft General Terms Agreement. Boeing will pay shipping charges to
return the Corrected Boeing Product.

                                      C2-5
<PAGE>

      8.2 Customer Instructions. The documentation shipped with the returned
defective Boeing Product may include specific technical instructions for
additional work to be performed on the Boeing Product. The absence of such
instructions will evidence Customer's authorization for Boeing to perform all
necessary Corrections and work required to return the Boeing Product to a
serviceable condition.

      8.3   Correction Time Objectives.

            8.3.1 Boeing's objective for making Corrections is 10 working days
for avionics and electronic Boeing Products, 30 working days for Corrections of
other Boeing Products performed at Boeing's facilities, and 40 working days for
Corrections of other Boeing Products performed at a Boeing subcontractor's
facilities. The objectives are measured from the date Boeing receives the
defective Boeing Product and a valid claim to the date Boeing ships the
Correction.

            8.3.2 If Customer has a critical parts shortage because Boeing has
exceeded a Correction time objective and Customer has procured spare Boeing
Products for the defective Boeing Product in quantities shown in Boeing's
Recommended Spare Parts List (RSPL) or Spares Planning and Requirements
Evaluation Model (M-SPARE), then Boeing will either expedite the Correction or
provide an interchangeable Boeing Product on a no charge loan or lease basis
until the Corrected Boeing Product is returned.

      8.4   Title Transfer and Risk of Loss.

            8.4.1 Title to and risk of loss of any Boeing Product returned to
Boeing will at all times remain with Customer or any other title holder of such
Boeing Product. While Boeing has possession of the returned Boeing Product,
Boeing will have only such liabilities as a bailee for mutual benefit would
have, but will not be liable for loss of use.

            8.4.2 If a Correction requires shipment of a new Boeing Product,
then at the time Boeing ships the new Boeing Product, title to and risk of loss
for the returned Boeing Product will pass to Boeing, and title to and risk of
loss for the new Boeing Product will pass to Customer.

9.    Returning an Aircraft.

      9.1 Conditions. An aircraft may be returned to Boeing's facilities for
Correction only if:

            (i)   Boeing and Customer agree a covered defect exists;

            (ii)  Customer lacks access to adequate facilities, equipment or
                  qualified personnel to perform the Correction; and

                                      C2-6
<PAGE>

            (iii) it is not practical, in Boeing's estimation, to dispatch
                  Boeing personnel to perform the Correction at a remote site.

      9.2 Correction Costs. Boeing will perform the Correction at no charge to
Customer. Subject to the conditions of Article 10.1, Boeing will reimburse
Customer for the costs of fuel, oil and landing fees incurred in ferrying the
aircraft to Boeing and back to Customer's facilities. Customer will minimize the
length of both flights.

      9.3 Separate Agreement. Boeing and Customer will enter into a separate
agreement covering return of the aircraft and performance of the Correction.
Authorization by Customer for Boeing to perform additional work that is not part
of the Correction must be received within 24 hours of Boeing's request. If such
authorization is not received within 24 hours, Customer will be invoiced for
work performed by Boeing that is not part of the Correction.

10.   Insurance.

      The provisions of Article 8.2 "Insurance", of this AGTA, will apply to any
work performed by Boeing in accordance with Customer's specific technical
instructions, to the extent any legal liability of Boeing is based upon the
content of such instructions.

11. Disclaimer and Release; Exclusion of Liabilities.

      11.1 DISCLAIMER AND RELEASE. THE WARRANTIES, OBLIGATIONS AND LIABILITIES
OF BOEING AND THE REMEDIES OF CUSTOMER IN THIS EXHIBIT C ARE EXCLUSIVE AND IN
SUBSTITUTION FOR, AND CUSTOMER HEREBY WAIVES, RELEASES AND RENOUNCES, ALL OTHER
WARRANTIES, OBLIGATIONS AND LIABILITIES OF BOEING AND ALL OTHER RIGHTS, CLAIMS
AND REMEDIES OF CUSTOMER AGAINST BOEING, EXPRESS OR IMPLIED, ARISING BY LAW OR
OTHERWISE, WITH RESPECT TO ANY NONCONFORMANCE OR DEFECT IN ANY AIRCRAFT,
MATERIALS, TRAINING, SERVICES OR OTHER THING PROVIDED UNDER THIS AGTA AND THE
APPLICABLE PURCHASE AGREEMENT, INCLUDING, BUT NOT LIMITED TO:

            (A)   ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS;

            (B)   ANY IMPLIED  WARRANTY  ARISING  FROM COURSE OF  PERFORMANCE,
                  COURSE OF DEALING OR USAGE OF TRADE;

            (C)   ANY OBLIGATION,  LIABILITY,  RIGHT, CLAIM OR REMEDY IN TORT,
                  WHETHER OR NOT ARISING FROM THE NEGLIGENCE OF BOEING; AND

                                      C2-7
<PAGE>

            (D)   ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY FOR LOSS OF
                  OR DAMAGE TO ANY AIRCRAFT.

      11.2 EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES. BOEING WILL HAVE NO
OBLIGATION OR LIABILITY, WHETHER ARISING IN CONTRACT (INCLUDING WARRANTY), TORT,
WHETHER OR NOT ARISING FROM THE NEGLIGENCE OF BOEING, OR OTHERWISE, FOR LOSS OF
USE, REVENUE OR PROFIT, OR FOR ANY OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES
WITH RESPECT TO ANY NONCONFORMANCE OR DEFECT IN ANY AIRCRAFT, MATERIALS,
TRAINING, SERVICES OR OTHER THING PROVIDED UNDER THIS AGTA AND THE APPLICABLE
PURCHASE AGREEMENT.

      11.3 Definitions. For the purpose of this Article, "BOEING" or "Boeing" is
defined as The Boeing Company, its divisions, subsidiaries, affiliates, the
assignees of each, and their respective directors, officers, employees and
agents.

                                      C2-8
<PAGE>

                          PRODUCT ASSURANCE DOCUMENT

                      PART 3: BOEING SERVICE LIFE POLICY

1.    Definitions.

      SLP Component - any of the primary structural elements (excluding industry
standard parts) of the landing gear, wing, fuselage, vertical or horizontal
stabilizer listed in the applicable purchase agreement for a specific model of
aircraft that is installed in the aircraft at time of delivery or is purchased
from Boeing by Customer as a spare part. The detailed SLP Component listing will
be in Supplemental Exhibit SLP1 to each Purchase Agreement.

2.    Service Life Policy.

      2.1 SLP Commitment. If a failure or defect is discovered in a SLP
Component within the time periods specified in Article 2.2 below, Boeing will,
at a price calculated pursuant to Article 3 below, Correct the SLP Component.

      2.2   SLP Policy Periods.

            2.2.1 The policy period for SLP Components initially installed on an
aircraft is 12 years after the date of delivery of the aircraft.

            2.2.2 The policy period for SLP Components purchased from Boeing by
Customer as spare parts is 12 years from delivery of such SLP Component or 12
years from the date of delivery of the last aircraft produced by Boeing of a
specific model, whichever first expires.

3.    Price.

      The price that Customer will pay for the Correction of a defective or
failed SLP Component will be calculated pursuant to the following formula:

            P =   CT
                  144

      where:

            P = price to Customer for the replacement part
            C = SLP Component sales price at time of Correction

                                      C3-1
<PAGE>

            T = total age in months of the defective or failed SLP Component
                from the date of delivery to Customer to the date of discovery
                of such condition.

4.    Conditions.

      Boeing's obligations under this Policy are conditioned upon the following:

      4.1 Customer must notify Boeing in writing of the defect or failure within
three months after it is discovered.

      4.2 Customer must provide reasonable evidence that the claimed defect or
failure is covered by this Policy and if requested by Boeing, that such defect
or failure was not the result of (i) a defect or failure in a component not
covered by this Policy, (ii) an extrinsic force, (iii) an act or omission of
Customer, or (iv) operation or maintenance contrary to applicable governmental
regulations or Boeing's instructions.

      4.3 If return of a defective or failed SLP Component is practicable and
requested by Boeing, Customer will return such SLP Component to Boeing at
Boeing's expense.

      4.4 Customer's rights and remedies under this Policy are limited to the
receipt of a Correction at prices calculated pursuant to Article 3 above.

5. Disclaimer and Release; Exclusion of Liabilities.

      This Part 3 and the rights and remedies of Customer and the obligations of
Boeing are subject to the DISCLAIMER AND RELEASE and EXCLUSION OF CONSEQUENTIAL
AND OTHER DAMAGES provisions of Article 11 of Part 2 of this Exhibit C.

                                      C3-2
<PAGE>

                          PRODUCT ASSURANCE DOCUMENT

                     PART 4: SUPPLIER WARRANTY COMMITMENT

1.    Supplier Warranties and Supplier Patent and Copyright Indemnities.

      Boeing will use diligent efforts to obtain warranties and indemnities
against patent and copyright infringement enforceable by Customer from Suppliers
of Supplier Products (except for BFE and engines) installed on the aircraft at
the time of delivery that were selected and purchased by Boeing, but not
manufactured to Boeing's detailed design. Boeing will furnish copies of the
warranties and patent and copyright indemnities to Customer contained in
Supplier Product Support and Product Assurance Agreements,
_____________________________ prior to the scheduled delivery month of the first
aircraft under the initial purchase agreement to the AGTA.

2. Boeing Assistance in Administration of Supplier Warranties.

      Customer will be responsible for submitting warranty claims directly to
Suppliers; however, if Customer experiences problems enforcing any Supplier
warranty obtained by Boeing for Customer, Boeing will promptly conduct an
investigation of the problem and assist Customer in the resolution of those
claims.

3. Boeing Support in Event of Supplier Default.

      3.1 If the Supplier defaults in the performance of a material obligation
under its warranty, and Customer provides evidence to Boeing that a default has
occurred, then Boeing will furnish the equivalent warranty terms as provided by
the defaulting Supplier.

      3.2 At Boeing's request, Customer will assign to Boeing, and Boeing will
be subrogated to, its rights against the Supplier provided by the Supplier
warranty.

                                      C4-1
<PAGE>

                          PRODUCT ASSURANCE DOCUMENT

                     PART 5: BOEING INTERFACE COMMITMENT

1.    Interface Problems.

      An Interface Problem is defined as a technical problem in the operation of
an aircraft or its systems experienced by Customer, the cause of which is not
readily identifiable by Customer but which Customer believes to be attributable
to either the design characteristics of the aircraft or its systems or the
workmanship used in the installation of Supplier Products. In the event Customer
experiences an Interface Problem, Boeing will, in consultation with Customer and
without additional charge to Customer, promptly conduct an investigation and
analysis to determine the cause or causes of the Interface Problem. Boeing will
promptly advise Customer at the conclusion of its investigation of Boeing's
opinion as to the causes of the Interface Problem and Boeing's recommendation as
to corrective action.

2.    Boeing Responsibility.

      If Boeing determines that the Interface Problem is primarily attributable
to the design or installation of any Boeing Product, Boeing will Correct the
design or workmanship to the extent of any then-existing obligations of Boeing
under the provisions of the applicable Boeing Warranty or Boeing Service Life
Policy.

3.    Supplier Responsibility.

      If Boeing determines that the Interface Problem is primarily attributable
to the design or installation of a Supplier Product, Boeing will assist Customer
in processing a warranty claim against the Supplier.

4.    Joint Responsibility.

      If Boeing determines that the Interface Problem is partially attributable
to the design or installation of a Boeing Product and partially to the design or
installation of a Supplier Product, Boeing will seek a solution to the Interface
Problem through the cooperative efforts of Boeing and the Supplier and will
promptly advise Customer of the resulting corrective actions and
recommendations.

5.    General.

      Customer will, if requested by Boeing, assign to Boeing any of its rights
against any supplier as Boeing may require to fulfill its obligations hereunder.

                                      C5-1
<PAGE>

6.   Disclaimer and Release; Exclusion of Liabilities.

     This Part 5 and the rights and remedies of Customer and the obligations of
Boeing herein are subject to the DISCLAIMER AND RELEASE and EXCLUSION OF
CONSEQUENTIAL AND OTHER DAMAGES provisions of Article 11 of Part 2 of this
Exhibit C.

                                      C5-2
<PAGE>

                          PRODUCT ASSURANCE DOCUMENT

                  PART 6: BOEING INDEMNITIES AGAINST PATENT
                         AND COPYRIGHT INFRINGEMENT

1.    Indemnity Against Patent Infringement.

      Boeing will defend and indemnify Customer with respect to all claims,
suits and liabilities arising out of any actual or alleged patent infringement
through Customer's use, lease or resale of any aircraft or any Boeing Product
installed on an aircraft at delivery.

2.    Indemnity Against Copyright Infringement.

      Boeing hereby indemnifies and holds harmless Customer from and against all
claims, suits, __________________________________ and liabilities arising out of
any actual or alleged copyright infringement through Customer's use, lease or
resale of any Boeing created Materials and Aircraft Software installed on an
aircraft at delivery.

3.    Exceptions, Limitations and Conditions.

      3.1 Boeing's obligation to indemnify Customer for patent infringement will
extend only to infringements in countries which, at the time of the
infringement, were party to and fully bound by either (a) Article 27 of the
Chicago Convention on International Civil Aviation of December 7, 1944, or (b)
the International Convention for the Protection of Industrial Property
(Paris Convention).

      3.2 Boeing's obligation to indemnify Customer for copyright infringement
is limited to infringements in countries which, at the time of the infringement,
are members of The Berne Union and recognize computer software as a "work" under
The Berne Convention.

      3.3 The indemnities provided under this Part 6 will not apply to any (i)
BFE, (ii) engines, (iii) Supplier Product (iv) Boeing Product used other than
for its intended purpose, or (v) Aircraft Software not created by Boeing.

      3.4 Customer must deliver written notice to Boeing (i) within ____ days
after Customer first receives notice of any suit or other formal action against
Customer and (ii) within ___ days after Customer first receives any other
allegation or written claim of infringement covered by this Part 6.

                                      C6-1
<PAGE>

      3.5 At any time, Boeing will have the right at its option and expense to:
(i) negotiate with any party claiming infringement, (ii) assume or control the
defense of any infringement allegation, claim, suit or formal action, (iii)
intervene in any infringement suit or formal action , and/or (iv) attempt to
resolve any claim of infringement by replacing an allegedly infringing Boeing
Product or Aircraft Software with a noninfringing equivalent.

      3.6 Customer will promptly furnish to Boeing all information, records and
assistance within Customer's possession or control which Boeing reasonably
considers relevant or material to any alleged infringement covered by this Part
6.

      3.7 Except as required by a final judgment entered against Customer by a
court of competent jurisdiction from which no appeals can be or have been filed,
Customer will obtain Boeing's written approval prior to paying, committing to
pay, assuming any obligation or making any material concession relative to any
infringement covered by these indemnities.

      3.8 ___________________________________________________________.

      3.9 Boeing will have no obligation or liability under this Part 6 for loss
of use, revenue or profit, or for any other incidental or consequential damages.
The obligations of Boeing and remedies of Customer in this Part 6 are exclusive
and in substitution for, and Customer hereby waives, releases and renounces all
other indemnities, obligations and liabilities of Boeing and all other rights,
claims and remedies of Customer against Boeing, express or implied, arising by
law or otherwise, with respect to any actual or alleged patent, copyright OR
OTHER INTELLECTUAL PROPERTY infringement or the like by any aircraft, AIRCRAFT
SOFTWARE, MATERIALS, TRAINING, SERVICES or other thing provided under this AGTA
and the applicaBLE PURCHASE AGREEMENT.

      3.10 For the purposes of this Part 6, "BOEING or Boeing" is defined as The
Boeing Company, its divisions, subsidiaries, affiliates, the assignees of each
and their respective directors, officers, employees and agents.

                                      C6-2
<PAGE>

                                  EXHIBIT D

                                      to

                       AIRCRAFT GENERAL TERMS AGREEMENT

                                   AGTA-HWI

                                   between

                              THE BOEING COMPANY

                                     and

                           Hawaiian Airlines, Inc.

                            ESCALATION ADJUSTMENT

                        AIRFRAME AND OPTIONAL FEATURES

          (For Model 717-200, 737-600, 737-700, 737-800 and 737-900, the
   Airframe Price Includes the Engine Price at its basic thrust level.)

                                        D
<PAGE>

                                  EXHIBIT D

                            ESCALATION ADJUSTMENT

1.    Formula.

      Airframe and Optional Features price adjustments (Airframe Price
Adjustment) are used to allow prices to be stated in current year dollars at the
signing of the applicable purchase agreement and to adjust the amount to be paid
by Customer at delivery for the effects of economic fluctuation. The Airframe
Price Adjustment will be determined at the time of aircraft delivery in
accordance with the following formula:

      Pa = (P+B)(L + M) - P

      Where:

               Pa =     Airframe Price Adjustment.  (For Model 717-200,
                        737-600, 737-700, 737-800 and 737-900, the Airframe
                        Price  includes  the Engine  Price at its basic thrust
                        level.)

               L =.65 x  ECI
                         ----
                         ECIb     where ECIb is the base year index (as set
                                  forth in Table 1 of the applicable purchase
                                  agreement)

               M =.35 x  ICI
                         ---
                         ICIb     where  ICIb is the  base  year index
                                  (as set forth in Table 1 of the
                                  applicable purchase agreement)

               P =  Airframe Price plus Optional Features Price (as set forth in
                    the applicable purchase agreement).

               B    =0.005 x (N/12) x (P) where N is the
                                    calendar month and year of scheduled
                                    Aircraft delivery minus the calendar month
                                    and year of the Base Price Year, both as
                                    shown in Table 1 of the applicable purchase
                                    agreement.

               ECI is a value determined using the U.S. Department of Labor,
               Bureau of Labor Statistics "Employment Cost Index for workers in
               aerospace manufacturing - Wages and Salaries" (ECI code 3721W),
               calculated by establishing a three-month arithmetic average value
               (expressed as a decimal and rounded to the nearest tenth) using
               the values for the fifth, sixth and seventh months prior to the
               month of scheduled delivery of the applicable aircraft. As the
               Employment Cost Index values are only released on a quarterly
               basis, the value released for the month of March will be used for
               the months of January and February; the value for June used for
               April and May; the value for September used for July and August;
               and the value for December used for October and November.

                                      D-1
<PAGE>

               ICI is a value determined using the U.S. Department of Labor,
               Bureau of Labor Statistics "Producer Prices and Price Index
               Industrial Commodities Index ", calculated as a 3-month
               arithmetic average of the released monthly values (expressed as a
               decimal and rounded to the nearest tenth) using the values for
               the 5th, 6th and 7th months prior to the month of scheduled
               delivery of the applicable aircraft.

               As an example, for an aircraft scheduled to be delivered in the
               month of January, the months June, July and August of the
               preceding year will be utilized in determining the value of ECI
               and ICI.

Note:    i.    In  determining  the  values of L and M, all  calculations  and
         resulting  values  will be  expressed  as a  decimal  rounded  to the
         nearest ten-thousandth.

         ii.   .65 is the numeric  ratio  attributed  to labor in the Airframe
         Price Adjustment formula.

         iii.  .35  is  the  numeric  ratio  attributed  to  materials  in the
         Airframe Price Adjustment formula.

         iv. The denominators (base year indices) are the actual average values
         reported by the U.S. Department of Labor, Bureau of Labor Statistics
         (base year June 1989 = 100). The applicable base year and corresponding
         denominator will be provided by Boeing in the applicable purchase
         agreement.

         v. If the calculated sum of L + M is less than 1.0000, then the value
         of the sum is adjusted to 1.0000.

2. Values to be Utilized in the Event of Unavailability.

      2.1 If the Bureau of Labor Statistics substantially revises the
methodology used for the determination of the values to be used to determine the
ECI and ICI values (in contrast to benchmark adjustments or other corrections of
previously released values), or for any reason has not released values needed to
determine the applicable Airframe Price Adjustment, the parties will, prior to
the delivery of any such aircraft, select a substitute from other Bureau of
Labor Statistics data or similar data reported by non-governmental
organizations. Such substitute will result in the same adjustment, insofar as
possible, as would have been calculated utilizing the original values adjusted
for fluctuation during the applicable time period. However, if within 24 months
after delivery of the aircraft, the Bureau of Labor Statistics should resume
releasing values for the months needed to determine the Airframe Price
Adjustment, such values will be used to determine any increase or decrease in
the Airframe Price Adjustment for the aircraft from that determined at the time
of delivery of the aircraft.

                                      D-2
<PAGE>

      2.2 Notwithstanding Article 2.1 above, if prior to the scheduled delivery
month of an aircraft the Bureau of Labor Statistics changes the base year for
determination of the ECI and ICI values as defined above, such re-based values
will be incorporated in the Airframe Price Adjustment calculation.

      2.3 In the event escalation provisions are made non-enforceable or
otherwise rendered void by any agency of the United States Government, the
parties agree, to the extent they may lawfully do so, to equitably adjust the
Purchase Price of any affected aircraft to reflect an allowance for increases or
decreases in labor compensation and material costs occurring since February of
the price base year shown in the applicable purchase agreement which is
consistent with the applicable provisions of paragraph 1 of this Exhibit D.

      2.4 If within 12 months of Aircraft delivery, the published Index values
are revised due to an acknowledged error by the Bureau of Labor Statistics, the
Airframe Price Adjustment will be re-calculated using the revised Index values
(this does not include those values noted as preliminary by the Bureau of Labor
Statistics). A Credit Memo or Supplemental Invoice will be issued for the
Airframe Price Adjustment difference. Interest charges will not apply for the
period of original invoice to issuance of Credit Memo or Supplemental Invoice.

Note:    i. The  values  released  by  the  Bureau  of  Labor  Statistics  and
         available to Boeing 30 days prior to the scheduled  delivery month of
         an aircraft  will be used to determine the ECI and ICI values for the
         applicable  months  (including  those  noted  as  preliminary  by the
         Bureau  of  Labor   Statistics)   to  calculate  the  Airframe  Price
         Adjustment  for the  aircraft  invoice at the time of  delivery.  The
         values will be  considered  final and no Aircraft  Price  Adjustments
         will be made after Aircraft  delivery for any  subsequent  changes in
         published Index values, subject always to paragraph 2.4 above.

         ii.The maximum number of digits to the right of the decimal after
         rounding utilized in any part of the Airframe Price Adjustment equation
         will be 4, where rounding of the fourth digit will be increased to the
         next highest digit when the 5th digit is equal to 5 or greater.

                                      D-3
<PAGE>

                                    SAMPLE
                            Insurance Certificate

==============================================================================
                             BROKER'S LETTERHEAD
==============================================================================

[ date ]

Certificate of Insurance

ISSUED TO:           The Boeing Company
                     Post Office Box 3707
                     Mail Stop 13-57
                     Seattle, Washington 98124
                     Attn:  Manager - Aviation Insurance for
                            Vice President - Employee Benefits,
                            Insurance and Taxes

CC:                  Boeing Commercial Airplane Group
                     P.O. Box 3707
                     Mail Stop 75-38
                     Seattle, Washington 98124-2207
                     U.S.A.
                     Attn:  Vice President - Contracts

NAMED INSURED:  Hawaiian Airlines

We hereby certify that in our capacity as Brokers to the Named Insured, the
following described insurance is in force on this date:

Insurer                 Policy No.              Participation
-------                 ----------              -------------

POLICY PERIOD:        From [date and time of inception of the Policy(ies)] to
                      [date and time of expiration].

GEOGRAPHICAL LIMITS:  Worldwide (however, as respects "Aircraft Hull War and
                      Allied Perils" Insurance, as agreed by Boeing).

                                    App. I1
<PAGE>

                                    SAMPLE
                            Insurance Certificate

AIRCRAFT INSURED:       All Boeing manufactured aircraft owned or operated by
                        the Named Insured which are the subject of the following
                        purchase agreement(s), entered into between The Boeing
                        Company and _________________ (hereinafter "Aircraft"):

                        Purchase Agreement No. ____ dated ______
                        Purchase Agreement No. ____ dated ______

COVERAGES:

1. Aircraft "all risks" Hull (Ground and Flight)
2. Aircraft Hull War and Allied Perils (as per LSW 555, or its successor
   wording)
3. Airline Liability

Including, but not limited to, Bodily Injury, Property Damage, Aircraft
Liability, Liability War Risks, Passenger Legal Liability, Premises/Operations
Liability, Completed Operations/Products Liability, Baggage Legal Liability
(checked and unchecked), Cargo Legal Liability, Contractual Liability and
Personal Injury.

The above-referenced Airline Liability insurance coverage is subject to War and
Other Perils Exclusion Clause (AV48B) but all sections, other than section (b)
are reinstated as per AV52C, or their successor endorsements.

LIMITS OF LIABILITY:

To the fullest extent of the Policy limits that the Named Insured carries from
the time of delivery of the first Aircraft under the first Purchase Agreement
listed under "Aircraft Insured" and thereafter at the inception of each policy
period, but in any event no less than the following:

Combined Single Limit Bodily Injury and Property Damage: U.S.$ any one
occurrence each Aircraft (with aggregates as applicable).

      (717-200)                     US$300,000,000
      (737-500/600)                 US$350,000,000
      (737-300/700)                 US$400,000,000
      (737-400)                     US$450,000,000
      (737-800)                     US$500,000,000
      (757-200)                     US$525,000,000
      (757-300)                     US$550,000,000
      (767-200)                     US$550,000,000
      (767-300)                     US$700,000,000
      (767-400ERX)                  US$750,000,000
      (777-200X)                    US$750,000,000

                                    App. I2
<PAGE>
                                    SAMPLE
                            Insurance Certificate

      (MD-11)                       US$800,000,000
      (777-200/300)                 US$800,000,000
      (777-300X)                    US$900,000,000
      (747-400)                     US$900,000,000

(In regard to all other models and/or derivatives, to be specified by Boeing).

(In regard to Personal Injury coverage, limits are US$25,000,000 any one
offense/aggregate.)

DEDUCTIBLES / SELF-INSURANCE

Any deductible and/or self-insurance amount (other than standard market
deductibles) are to be disclosed and agreed by Boeing.

SPECIAL PROVISIONS APPLICABLE TO BOEING:

It is certified that Insurers are aware of the terms and conditions of AGTA-HWI
and the following purchase agreements:

PA ______ dated _______
PA ______ dated _______
PA ______ dated _______

Each Aircraft manufactured by Boeing which is delivered to the Insured pursuant
to the applicable purchase agreement during the period of effectivity of the
policies represented by this Certificate will be covered to the extent specified
herein.

Insurers have agreed to the following:

      A. In regard to Aircraft "all risks" Hull Insurance and Aircraft Hull War
and Allied Perils Insurance, Insurers agree to waive all rights of subrogation
or recourse against Boeing in accordance with AGTA-HWI which was incorporated by
reference into the applicable purchase agreement.

      B.    In regard to Airline Liability Insurance, Insurers agree:

            (1) To include Boeing as an additional insured in accordance with
Customer's undertaking in Article 8.2.1 of AGTA-HWI which was incorporated by
reference into the applicable purchase agreement.

                                    App. I3
<PAGE>

                                    SAMPLE
                            Insurance Certificate

            (2) To provide that such insurance will be primary and not
contributory nor excess with respect to any other insurance available for the
protection of Boeing;

            (3) To provide that with respect to the interests of Boeing, such
insurance shall not be invalidated or minimized by any action or inaction,
omission or misrepresentation by the Insured or any other person or party (other
than Boeing) regardless of any breach or violation of any warranty, declaration
or condition contained in such policies;

            (4) To provide that all provisions of the insurance coverages
referenced above, except the limits of liability, will operate to give each
Insured or additional insured the same protection as if there were a separate
Policy issued to each.

      C.    In regard to all of the above referenced policies:

            (1) Boeing will not be responsible for payment, set-off, or
assessment of any kind or any premiums in connection with the policies,
endorsements or coverages described herein;

            (2) If a policy is canceled for any reason whatsoever, or any
substantial change is made in the coverage which affects the interests of Boeing
or if a policy is allowed to lapse for nonpayment of premium, such cancellation,
change or lapse shall not be effective as to Boeing for thirty (30) days (in the
case of war risk and allied perils coverage seven (7) days after sending, or
such other period as may from time to time be customarily obtainable in the
industry) after receipt by Boeing of written notice from the Insurers or the
authorized representatives or Broker of such cancellation, change or lapse; and

            (3) For the purposes of the Certificate, "Boeing" is defined as The
Boeing Company, its divisions, subsidiaries, affiliates, the assignees of each
and their respective directors, officers, employees and agents.

Subject to the terms, conditions, limitations and exclusions of the relative
policies.

(signature)

(typed name)

(title)

                                    App. I4
<PAGE>

                                    SAMPLE
                        Purchase Agreement Assignment

      THIS PURCHASE AGREEMENT ASSIGNMENT (Assignment) dated as of ________ 19__
between Hawaiian Airlines, a company organized under the laws of
________________ (Assignor) and ________________________, a company organized
under the laws of ________________ (Assignee). Capitalized terms used herein
without definition will have the same meaning as in the Boeing Purchase
Agreement.

      Assignor and The Boeing Company, a Delaware corporation (Boeing), are
parties to the Boeing Purchase Agreement, providing, among other things, for the
sale by Boeing to Assignor of certain aircraft, engines and related equipment,
including the Aircraft.

      Assignee wishes to acquire the Aircraft and certain rights and interests
under the Boeing Purchase Agreement and Assignor, on the following terms and
conditions, is willing to assign to Assignee certain of Assignor's rights and
interests under the Boeing Purchase Agreement. Assignee is willing to accept
such assignment.

It is agreed as follows:

      1. For all purposes of this Assignment, the following terms will have the
following meanings:

      Aircraft -- one Boeing Model ______ aircraft, bearing manufacturer's
serial number _______, together with all engines and parts installed on such
aircraft on the Delivery Date.

      Boeing -- Boeing shall include Boeing Sales Corporation (a wholly-owned
subsidiary of Boeing), a Guam corporation, and its successors and assigns.

      Boeing Purchase Agreement -- Purchase Agreement No. ________ dated as of
____________ between Boeing and Assignor, as amended, but excluding
______________, providing, among other things, for the sale by Boeing to
Assignor of the Aircraft, as said agreement may be further amended to the extent
permitted by its terms. The Purchase Agreement incorporated by reference
Aircraft General Terms Agreement AGTA/____ (AGTA).

      Delivery Date -- the date on which the Aircraft is delivered by Boeing to
Assignee pursuant to and subject to the terms and conditions of the Boeing
Purchase Agreement and this Assignment.

      2. Assignor does hereby assign to Assignee all of its rights and interests
in and to the Boeing Purchase Agreement, as and to the extent that the same
relate to the Aircraft and the purchase and operation thereof, except as and to
the extent expressly reserved below, including, without limitation, in such
assignment: [TO BE COMPLETED BY THE PARTIES.]

                                    App. II1
<PAGE>

                                    SAMPLE
                        Purchase Agreement Assignment

      {EXAMPLES

      (a)   the right upon valid tender to purchase the Aircraft pursuant to the
            Boeing Purchase Agreement subject to the terms and conditions
            thereof and the right to take title to the Aircraft and to be named
            the "Buyer" in the bill of sale for the Aircraft;

      (b)   the right to accept delivery of the Aircraft;

      (c)   all claims for damages arising as a result of any default under the
            Boeing Purchase Agreement in respect of the Aircraft;

      (d)   all warranty and indemnity provisions contained in the Boeing
            Purchase Agreement, and all claims arising thereunder, in respect of
            the Aircraft; and

      (e)   any and all rights of Assignor to compel performance of the terms of
            the Boeing Purchase Agreement in respect of the Aircraft.}

Reserving exclusively to Assignor, however:

      {EXAMPLES

      (i)   all Assignor's rights and interests in and to the Boeing Purchase
            Agreement as and to the extent the same relates to aircraft other
            than the Aircraft, or to any other matters not directly pertaining
            to the Aircraft;

      (ii)  all Assignor's rights and interests in or arising out of any advance
            or other payments or deposits made by Assignor in respect of the
            Aircraft under the Boeing Purchase Agreement and any amounts
            credited or to be credited or paid or to be paid by Boeing in
            respect of the Aircraft;

      (iii) the right to obtain services, training, information and
            demonstration and test flights pursuant to the Boeing Purchase
            Agreement; and

      (iv)  the right to maintain plant representatives at Boeing's plant
            pursuant to the Boeing Purchase Agreement.}

Assignee hereby accepts such assignment.

      3. Notwithstanding the foregoing, so long as no event of default or
termination under [specify document] has occurred and is continuing, Assignee
hereby authorizes Assignor, to the exclusion of Assignee, to exercise in
Assignor's name all rights and powers of Customer under the Boeing Purchase
Agreement in respect of the Aircraft.

                                    App. II2
<PAGE>

      4. For all purposes of this Assignment, Boeing will not be deemed to have
knowledge of or need recognize the occurrence, continuance or the discontinuance
of any event of default or termination under [specify document] unless and until
Boeing receives from Assignee written notice thereof, addressed to its Vice
President - Contracts, Boeing Commercial Airplane Group at P.O. Box 3707,
Seattle, Washington 98124, if by mail, or to 32-9430 Answerback BOEINGREN RNTN,
if by telex. Until such notice has been given, Boeing will be entitled to deal
solely and exclusively with Assignor. Thereafter, until Assignee has provided
Boeing written notice that any such events no longer continue, Boeing will be
entitled to deal solely and exclusively with Assignee. Boeing may act with
acquittance and conclusively rely on any such notice.

      5. It is expressly agreed that, anything herein contained to the contrary
notwithstanding: (a) prior to the Delivery Date Assignor will perform its
obligations with respect to the Aircraft to be performed by it on or before such
delivery, (b) Assignor will at all times remain liable to Boeing under the
Boeing Purchase Agreement to perform all obligations of Customer thereunder to
the same extent as if this Assignment had not been executed, and (c) the
exercise by Assignee of any of the assigned rights will not release Assignor
from any of its obligations to Boeing under the Boeing Purchase Agreement,
except to the extent that such exercise constitutes performance of such
obligations.

      6. Notwithstanding anything contained in this Assignment to the contrary
(but without in any way releasing Assignor from any of its obligations under the
Boeing Purchase Agreement), Assignee confirms for the benefit of Boeing that,
insofar as the provisions of the Boeing Purchase Agreement relate to the
Aircraft, in exercising any rights under the Boeing Purchase Agreement, or in
making any claim with respect to the Aircraft or other things (including,
without limitation, Material, training and services) delivered or to be
delivered pursuant to the Boeing Purchase Agreement, the terms and conditions of
the Boeing Purchase Agreement, including, without limitation, the DISCLAIMER AND
RELEASE and EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES in Article 11 of Part 2
of Exhibit C to the Aircraft General Terms Agreement which was incorporated by
reference into the Boeing Purchase Agreement and the insurance provisions in
Article 8.2 of the Aircraft General Terms Agreement which was incorporated by
reference into the Boeing Purchase Agreement therein, will apply to and be
binding on Assignee to the same extent as if Assignee had been the original
"Customer" thereunder. Assignee further agrees, expressly for the benefit of
Boeing, upon the written request of Boeing, Assignee will promptly execute and
deliver such further assurances and documents and take such further action as
Boeing may reasonably request in order to obtain the full benefits of Assignee's
agreements in this paragraph.

      7. Nothing contained herein will subject Boeing to any liability to which
it would not otherwise be subject under the Boeing Purchase Agreement or modify
in any respect the contract rights of Boeing thereunder, or require Boeing to
divest itself of title to or possession of the Aircraft or other things until
delivery thereof and payment therefor as provided therein.

                                    App. II3
<PAGE>

      8. Notwithstanding anything in this Assignment to the contrary, after
receipt of notice of any event of default or termination under [specify
document], Boeing will continue to owe to Assignor moneys in payment of claims
made or obligations arising before such notice, which moneys may be subject to
rights of set-off available to Boeing under applicable law. Similarly, after
receipt of notice that such event of default or termination no longer continues,
Boeing will continue to owe to Assignee moneys in payment of claims made or
obligations arising before such notice, which moneys may be subject to rights of
set-off available to Boeing under applicable law.

      9. Effective at any time after an event of default has occurred, and for
so long as such event of default is continuing, Assignor does hereby constitute
Assignee, Assignor's true and lawful attorney, irrevocably, with full power (in
the name of Assignor or otherwise) to ask, require, demand, receive, and give
acquittance for any and all moneys and claims for moneys due and to become due
under or arising out of the Boeing Purchase Agreement in respect of the
Aircraft, to the extent assigned by this Assignment.

      10. Assignee agrees, expressly for the benefit of Boeing and Assignor that
it will not disclose, directly or indirectly, any terms of the Boeing Purchase
Agreement; provided, that Assignee may disclose any such information (a) to its
special counsel and public accountants, (b) as required by applicable law to be
disclosed or to the extent that Assignee may have received a subpoena or other
written demand under color of legal right for such information, but it will
first, as soon as practicable upon receipt of such requirement or demand,
furnish an explanation of the basis thereof to Boeing, and will afford Boeing
reasonable opportunity, to obtain a protective order or other reasonably
satisfactory assurance of confidential treatment for the information required to
be disclosed, and (c) to any bona fide potential purchaser or lessee of the
Aircraft. Any disclosure pursuant to (a) and (c) above will be subject to
execution of a confidentiality agreement substantially similar to this paragraph
10.

      11. This Assignment may be executed by the parties in separate
counterparts, each of which when so executed and delivered will be an original,
but all such counterparts will together constitute but one and the same
instrument.

                                    App. II4
<PAGE>

      12. This Assignment will be governed by, and construed in accordance with,
the laws of [______________________].

__________________________          __________________________
as Assignor                         as Assignee

By _______________________          By _______________________

Name:                               Name:

Title:                              Title:

[If the  Assignment  is further  assigned  by Assignee  in  connection  with a
financing, the following language needs to be included.]

Attest:

The undersigned, as [Indenture Trustee/Agent for the benefit of the Loan
Participants/Mortgagee] and as assignee of, and holder of a security interest
in, the estate, right, and interest of the Assignee in and to the foregoing
Purchase Agreement Assignment and the Purchase Agreement pursuant to the terms
of a certain [Trust Indenture/Mortgage] dated as of _____________, agrees to the
terms of the foregoing Purchase Agreement Assignment and agrees that its rights
and remedies under such [Trust Indenture/Mortgage] shall be subject to the terms
and conditions of the foregoing Purchase Agreement Assignment, including,
without limitation, paragraph 6.

[Name of Entity],
as Indenture Trustee/Agent

By:____________________________

Name:

Title:

                                    App. II5
<PAGE>

                                    SAMPLE
                        Purchase Agreement Assignment

                                      6
CONSENT AND AGREEMENT OF
THE BOEING COMPANY

      THE BOEING COMPANY, a Delaware corporation (Boeing), hereby acknowledges
notice of and consents to the foregoing Purchase Agreement Assignment
(Assignment). Boeing confirms to Assignee that: all representations, warranties,
indemnities and agreements of Boeing under the Boeing Purchase Agreement with
respect to the Aircraft will, subject to the terms and conditions thereof and of
the Assignment, inure to the benefit of Assignee to the same extent as if
Assignee were originally named "Customer" therein.

      This Consent and Agreement will be governed by, and construed in
accordance with, the law of the State of Washington, excluding the conflict of
laws principles thereof.

Dated as of ____________________, 199___.

THE BOEING COMPANY

By ________________________
Name:
Title:  Attorney-in-Fact

Aircraft Manufacturer's Serial Number(s) ____________

                                    App. II6
<PAGE>

                                    SAMPLE
                          Post-Delivery Sale Notice

Boeing Commercial Airplane Group
P.O. Box 3707
Seattle, Washington  98124-2207

Attention:  Vice President - Contracts
            Mail Stop 75-38

Ladies and Gentlemen:

In connection with the sale by Hawaiian Airlines (Seller) to ________________
(Purchaser) of the aircraft identified below, reference is made to Purchase
Agreement No. _____ dated as of ___________, 19__, between The Boeing Company
(Boeing) and Seller (the Purchase Agreement) under which Seller purchased
certain Boeing Model ________ aircraft, including the aircraft bearing
Manufacturer's Serial No.(s) ______________________ (the Aircraft). The Purchase
Agreement incorporated by reference Aircraft General Terms Agreement AGTA-HWI
(AGTA).

Capitalized terms used herein without definition will have the same meaning as
in the Purchase Agreement.

Seller has sold the Aircraft, including in that sale the transfer to Purchaser
of all remaining rights related to the Aircraft under the Purchase Agreement. To
accomplish this transfer of rights, as authorized by the provisions of the
Purchase Agreement:

(1) Purchaser acknowledges it has reviewed the Purchase Agreement and agrees to
be bound by and comply with all applicable terms and conditions of the Purchase
Agreement, including, without limitation, the DISCLAIMER AND RELEASE and
EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES in Article 11 of Part 2 of Exhibit
C to the AGTA and the insurance provisions in Article 8.2 of the AGTA. Purchaser
further agrees upon the written request of Boeing, to promptly execute and
deliver such further assurances and documents and take such further action as
Boeing may reasonably request in order to obtain the full benefits of
Purchaser's agreements in this paragraph; and

(2) Seller will remain responsible for any payments due Boeing as a result of
obligations relating to the Aircraft incurred by Seller to Boeing prior to the
effective date of this letter.

                                   App. III1
<PAGE>

                                    SAMPLE
                          Post-Delivery Sale Notice

We request that Boeing acknowledge receipt of this letter and confirm the
transfer of rights set forth above by signing the acknowledgment and forwarding
one copy of this letter to each of the undersigned.

Very truly yours,

Hawaiian Airlines                     Purchaser

By______________________              By ______________________

Its_____________________              Its _____________________

Dated___________________              Dated ___________________

Receipt of the above letter is acknowledged and transfer of rights under the
Purchase Agreement with respect to the Aircraft is confirmed, effective as of
this date.

THE BOEING COMPANY

By______________________

Its Attorney-in-Fact
  _____________________

Dated___________________

Aircraft Manufacturer's Serial Number ____________

                                   App. III2
<PAGE>

                                    SAMPLE
                          Post-Delivery Lease Notice

Boeing Commercial Airplane Group
P.O. Box 3707
Seattle, Washington  98124-2207

Attention:  Vice President - Contracts
            Mail Stop 75-38

Ladies and Gentlemen:

In connection with the lease by Hawaiian Airlines (Lessor) to ___________
(Lessee) of the aircraft identified below, reference is made to Purchase
Agreement No. ____ dated as of ________, 19__, between The Boeing Company
(Boeing) and Lessor (the Purchase Agreement) under which Lessor purchased
certain Boeing Model _______ aircraft, including the aircraft bearing
Manufacturer's Serial No.(s) ___________________ (the Aircraft). The Purchase
Agreement incorporated by reference Aircraft General Terms Agreement AGTA-HWI
(AGTA).

Capitalized terms used herein without definition will have the same meaning as
in the Purchase Agreement.

Lessor has leased the Aircraft, including in that lease the transfer to Lessee
of all remaining rights related to the Aircraft under the Purchase Agreement. To
accomplish this transfer of rights, as authorized by the provisions of the
Purchase Agreement:

(1) Lessor authorizes Lessee to exercise, to the exclusion of Lessor, all rights
and powers of Lessor with respect to the remaining rights related to the
Aircraft under the Purchase Agreement. This authorization will continue until
Boeing receives written notice from Lessor to the contrary, addressed to Vice
President - Contracts, Mail Stop 75-38, Boeing Commercial Airplane Group, P.O.
Box 3707, Seattle, Washington 98124-2207. Until Boeing receives such notice,
Boeing is entitled to deal exclusively with Lessee with respect to the Aircraft
under the Purchase Agreement. With respect to the rights and obligations of
Lessor under the Purchase Agreement, all actions taken or agreements entered
into by Lessee during the period prior to Boeing's receipt of this notice are
final and binding on Lessor. Further, any payments made by Boeing as a result of
claims made by Lessee will be made to the credit of Lessee.

(2) Lessee accepts the authorization above, acknowledges it has reviewed the
Purchase Agreement and agrees to be bound by and comply with all applicable
terms and conditions of the Purchase Agreement including, without limitation,
the DISCLAIMER AND RELEASE and EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES in
Article 11 of Part 2 of Exhibit C AGTA and the insurance provisions in Article
8.2 of the AGTA. Lessee further agrees, upon the written request of Boeing, to
promptly execute and deliver such further assurances and documents and take such
further action as Boeing may reasonably request in order to obtain the full
benefits of Lessee's agreements in this paragraph.

                                    App. IV1
<PAGE>

                                    SAMPLE
                          Post-Delivery Lease Notice

(3) Lessor will remain responsible for any payments due Boeing as a result of
obligations relating to the Aircraft incurred by Lessor to Boeing prior to the
effective date of this Notice.

We request that Boeing acknowledges receipt of this letter and confirm the
transfer of rights set forth above by signing the acknowledgment and forwarding
one copy of this letter to each of the undersigned.

Very truly yours,

Hawaiian Airlines                     Purchaser

By______________________              By ______________________

Its_____________________              Its _____________________

Dated___________________              Dated ___________________

Receipt of the above letter is acknowledged and transfer of rights under the
Purchase Agreement with respect to the Aircraft is confirmed, effective as of
this date.

By______________________

Its_____________________

Dated___________________

Aircraft Manufacturer's Serial Number ____________

                                    App. IV2
<PAGE>

                                    SAMPLE
                        Purchaser's/Lessee's Agreement

Boeing Commercial Airplane Group
P. O. Box 3707
Seattle, Washington  98124-2207

Attention   Vice President - Contracts
            Mail Stop 75-38

Ladies and Gentlemen:

In connection with the sale/lease by Hawaiian Airlines (Seller/Lessor) to
_______________________ (Purchaser/Lessee) of the aircraft identified below,
reference is made to the following documents:

(i) Purchase Agreement No. _____ dated as of ___________, 19__, between The
Boeing Company (Boeing) and Seller/Lessor (the Purchase Agreement) under which
Seller/Lessor purchased certain Boeing Model ________ aircraft, including the
aircraft bearing Manufacturer's Serial No.(s) ______________________ (the
Aircraft); and

(ii) Aircraft Sale/Lease Agreement dated as of ___________, 19__, between
Seller/Lessor and Purchaser/Lessee (the Aircraft Agreement) under which
Seller/Lessor is selling/leasing the Aircraft.

Capitalized terms used herein without definition will have the same meaning as
in the Aircraft Agreement.

1. Seller/Lessor has sold/leased the Aircraft under the Aircraft Agreement,
including therein a form of exculpatory clause protecting Seller/Lessor from
liability for loss of or damage to the aircraft, and/or related incidental or
consequential damages, including without limitation loss of use, revenue or
profit.

2.    Disclaimer and Release; Exclusion of Liabilities

      2.1 In accordance with Seller/Lessor's obligation under Article 9.5 of
AGTA-HWI which was incorporated by reference into the Purchase Agreement,
Purchaser/Lessee hereby agrees that:

      2.2 DISCLAIMER AND RELEASE. IN CONSIDERATION OF THE SALE/LEASE OF THE
AIRCRAFT, PURCHASER/LESSEE HEREBY WAIVES, RELEASES AND RENOUNCES ALL WARRANTIES,
OBLIGATIONS AND LIABILITIES OF BOEING AND ALL OTHER RIGHTS, CLAIMS AND REMEDIES
OF PURCHASER/LESSEE AGAINST BOEING, EXPRESS OR IMPLIED, ARISING BY LAW OR
OTHERWISE, WITH RESPECT TO ANY NONCONFORMANCE OR DEFECT IN ANY AIRCRAFT, BOEING
PRODUCT, MATERIALS, TRAINING, SERVICES OR OTHER THING PROVIDED UNDER THE
AIRCRAFT AGREEMENT, INCLUDING, BUT NOT LIMITED TO:

                                    App. V1
<PAGE>

                                    SAMPLE
                        Purchaser's/Lessee's Agreement

            (A)   ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS;

            (B)   ANY IMPLIED  WARRANTY  ARISING  FROM COURSE OF  PERFORMANCE,
                  COURSE OF DEALING OR USAGE OF TRADE;

            (C)   ANY OBLIGATION,  LIABILITY,  RIGHT, CLAIM OR REMEDY IN TORT,
                  WHETHER OR NOT ARISING FROM THE NEGLIGENCE OF BOEING; AND

            (D)   ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY FOR LOSS OF
                  OR DAMAGE TO ANY AIRCRAFT.

      2.3 EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES. BOEING WILL HAVE NO
OBLIGATION OR LIABILITY, WHETHER ARISING IN CONTRACT (INCLUDING WARRANTY), TORT,
WHETHER OR NOT ARISING FROM THE NEGLIGENCE OF BOEING, OR OTHERWISE, FOR LOSS OF
USE, REVENUE OR PROFIT, OR FOR ANY OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES
WITH RESPECT TO ANY NONCONFORMANCE OR DEFECT IN ANY AIRCRAFT, MATERIALS,
TRAINING, SERVICES OR OTHER THING PROVIDED UNDER THE AIRCRAFT AGREEMENT.

      2.4 Definitions. For the purpose of this paragraph 2, "BOEING" or "Boeing"
is defined as The Boeing Company, its divisions, subsidiaries, affiliates, the
assignees of each, and their respective directors, officers, employees and
agents.

Hawaiian Airlines                     Purchaser/Lessee
(Seller/Lessor)

By______________________              By ______________________

Its_____________________              Its _____________________

Dated___________________              Dated ___________________

                                    App. V2
<PAGE>

                                    SAMPLE
                   Owner Appointment of Agent - Warranties

Boeing Commercial Airplane Group
P.O. Box 3707
Seattle, Washington  98124-2207

Attention:  Vice President - Contracts
            Mail Stop 75-38

Ladies and Gentlemen:

1. Reference is made to Purchase Agreement No. ____ dated as of __________,
19__, between The Boeing Company (Boeing) and Hawaiian Airlines (Customer) (the
Purchase Agreement), under which Customer purchased certain Boeing Model
________ aircraft including the aircraft bearing Manufacturer's Serial No.(s)
_____________ (the Aircraft). The Purchase Agreement incorporated by reference
Aircraft General Terms Agreement AGTA-HWI (AGTA).

Capitalized terms used herein without definition will have the same meaning as
in the Purchase Agreement.

To accomplish the appointment of an agent, Customer confirms:

A. Customer has appointed ____________________ as agent (Agent) to act directly
with Boeing with respect to the remaining warranties under the Purchase
Agreement and requests Boeing to treat Agent as Customer for the administration
of claims with respect to such warranties; provided however, Customer remains
liable to Boeing to perform the obligations of Customer under the Purchase
Agreement.

B. Boeing may continue to deal exclusively with Agent concerning the matters
described herein unless and until Boeing receives written notice from Customer
to the contrary, addressed to Vice President - Contracts, Mail Stop 75-38,
Boeing Commercial Airplane Group, P.O. Box 3707, Seattle, Washington 98124-2207,
U.S.A. With respect to the rights and obligations of Customer under the Purchase
Agreement, all actions taken by Agent or agreements entered into by Agent during
the period prior to Boeing's receipt of such notice are final and binding on
Customer. Further, any payments made by Boeing as a result of claims made by
Agent will be made to the credit of Agent unless otherwise specified when each
claim is submitted.

C. Customer will remain responsible for any payments due Boeing as a result of
obligations relating to the Aircraft incurred by Customer to Boeing prior to the
effective date of this Notice.

                                    App. VI1
<PAGE>

                                    SAMPLE
                   Owner Appointment of Agent - Warranties

We request that Boeing acknowledge receipt of this letter and confirm the
appointment of Agent as stated above by signing the acknowledgment and
forwarding one copy of this letter to each of the undersigned.

Very truly yours,

Hawaiian Airlines

By_________________

                                    App. VI2
<PAGE>

                                    SAMPLE
                   Owner Appointment of Agent - Warranties

                              AGENT'S AGREEMENT

Agent accepts the appointment as stated above, acknowledges it has reviewed the
Purchase Agreement and agrees that, in exercising any rights or making any
claims thereunder, Agent will be bound by and comply with all applicable terms
and conditions of the Purchase Agreement including, without limitation, the
DISCLAIMER AND RELEASE and EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES in
Article 11 of Part 2 of Exhibit C to the AGTA. Agent further agrees, upon the
written request of Boeing, to promptly execute and deliver such further
assurances and documents and take such further action as Boeing may reasonably
request in order to obtain the full benefits of the warranties under the
Purchase Agreement.

Very truly yours,

Agent

By______________________

Its_____________________

Dated___________________

Receipt of the above letter is acknowledged and the appointment of Agent with
respect to the above-described rights under the Purchase Agreement is confirmed,
effective as of this date.

THE BOEING COMPANY

By______________________

Its_____________________

Dated___________________

Aircraft Manufacturer's Serial Number __________

                                    App. VI3
<PAGE>

                                    SAMPLE
                     Contractor Confidentiality Agreement

Boeing Commercial Airplane Group
P.O. Box 3707
Seattle, Washington  98124-2207

Attention:  Vice President - Contracts
            Mail Stop 75-38

Ladies and Gentlemen:

This Agreement is entered into between ____________________ (Contractor) and
Hawaiian Airlines (Customer) and will be effective as of the date stated below.

In connection with Customer's provision to Contractor of certain Materials,
Proprietary Materials and Proprietary Information, reference is made to Purchase
Agreement No. _____ dated as of _______ , 19___ between The Boeing Company
(Boeing) and Customer.

Capitalized terms used herein without definition will have the same meaning as
in the Purchase Agreement.

Boeing has agreed to permit Customer to make certain Materials, Proprietary
Materials and Proprietary Information relating to Customer's Boeing Model
________ aircraft, Manufacturer's Serial Number ______, Registration No.
________ (the Aircraft) available to Contractor in connection with Customer's
contract with Contractor (the Contract) to maintain/repair/modify the Aircraft.
As a condition of receiving the Proprietary Materials and Proprietary
Information, Contractor agrees as follows:

1.    For purposes of this Agreement:

      "Aircraft  Software"  means  software  that is installed and used in the
operation of an Aircraft.

       "Materials" are defined as any and all items that are created by Boeing
or a third party, which are provided directly or indirectly from Boeing and
serve primarily to contain, convey or embody information. Materials may include
either tangible embodiments (for example, documents or drawings), or intangible
embodiments (for example, software and other electronic forms) of information
but excludes Aircraft Software.

      "Proprietary Information" means any and all proprietary, confidential
and/or trade secret information owned by Boeing or a Third Party which is
contained, conveyed or embodied in Proprietary Materials.

      "Proprietary Materials" means Materials that contain, convey, or embody
Proprietary Information.

      "Third Party" means anyone other than Boeing, Customer and Contractor.

                                    App. VII1
<PAGE>

                                    SAMPLE
                     Contractor Confidentiality Agreement

2. Boeing has authorized Customer to grant to Contractor a worldwide,
non-exclusive, personal and nontransferable license to use Proprietary Materials
and Proprietary Information, owned by Boeing, internally in connection with
performance of the Contract or as may otherwise be authorized by Boeing in
writing. Contractor will keep confidential and protect from disclosure to any
person, entity or government agency, including any person or entity affiliated
with Contractor, all Proprietary Materials and Proprietary Information.
Individual copies of all Materials are provided to Contractor subject to
copyrights therein, and all such copyrights are retained by Boeing or, in some
cases, by Third Parties. Contractor is authorized to make copies of Materials
(except for Materials bearing the copyright legend of a Third Party) provided,
however, Contractor preserves the restrictive legends and proprietary notices on
all copies. All copies of Proprietary Materials will belong to Boeing and be
treated as Proprietary Materials under this Agreement.

3. Contractor specifically agrees not to use Proprietary Materials or
Proprietary Information in connection with the manufacture or sale of any part
or design. Unless otherwise agreed with Boeing in writing, Proprietary Materials
and Proprietary Information may be used by Contractor only for work on the
Aircraft for which such Proprietary Materials have been specified by Boeing.
Customer and Contractor recognize and agree that they are responsible for
ascertaining and ensuring that all Materials are appropriate for the use to
which they are put.

4. Contractor will not attempt to gain access to information by reverse
engineering, decompiling, or disassembling any portion of any software provided
to Contractor pursuant to this Agreement.

5. Upon Boeing's request at any time, Contractor will promptly return to Boeing
(or, at Boeing's option, destroy) all Proprietary Materials, together with all
copies thereof and will certify to Boeing that all such Proprietary Materials
and copies have been so returned or destroyed.

6. To the extent required by a Government Entity having jurisdiction over
Contractor, Customer or the Aircraft, Contractor is authorized to provide
Proprietary Materials and disclose Proprietary Information to such Government
Entity for the such Government Entity's use in connection with Contractor's,
authorized use of such Proprietary Materials and/or Proprietary Information in
connection with Contractor's maintenance, repair, or modification of the
Aircraft. Contractor agrees to take reasonable steps to prevent such agency from
making any distribution or disclosure, or additional use of the Proprietary
Materials and Proprietary Information so provided or disclosed. Contractor
further agrees to promptly notify Boeing upon learning of any (i) distribution,
disclosure, or additional use by such agency, (ii) request to such Government
Entity for distribution, disclosure, or additional use, or (iii) intention on
the part of such Government Entity to distribute, disclose, or make additional
use of the Proprietary Materials or Proprietary Information. As used herein,
"Government Entity" means (i) any national government, political subdivison
thereof, or local jurisdiction therein, (ii) any instrumentality, board,
commission, court, or agency of any of the above, however constituted, and (iii)
any association, organization, or institution of which any of the above is a
member or to whose jurisdiction any thereof is subject or in whose activities
any of the above is a participant.

                                    App. VII2
<PAGE>

                                    SAMPLE
                     Contractor Confidentiality Agreement

7. Boeing is a third-party beneficiary under this Agreement, and Boeing may
enforce any and all of the provisions of the Agreement directly against
Contractor. Contractor hereby submits to the jurisdiction of the Washington
state courts and the United States District Court for the Western District of
Washington with regard to any claims Boeing may make under this Agreement. It is
agreed that Washington law (excluding Washington's conflict-of-law principles)
governs this Agreement.

8. No disclosure or physical transfer by Boeing or Customer to Contractor, of
any Proprietary Materials or Proprietary Information covered by this Agreement
will be construed as granting a license, other than as expressly set forth in
this Agreement or any ownership right in any patent, patent application,
copyright or proprietary information.

9. The provisions of this Agreement will apply notwithstanding any markings or
legends, or the absence thereof, on any Proprietary Materials.

10. This Agreement is the entire agreement of the parties regarding the
ownership and treatment of Proprietary Materials and Proprietary Information,
and no modification of this Agreement will be effective as against Boeing unless
in writing signed by authorized representatives of Contractor, Customer and
Boeing.

11. Failure by either party to enforce any of the provisions of this Agreement
will not be construed as a waiver of such provisions. If any of the provision of
this Agreement is held unlawful or otherwise ineffective by a court of competent
jurisdiction, the remainder of the Agreement will remain in full force.

ACCEPTED AND AGREED TO this

Date: _____________________, 19___

Hawaiian Airlines                     Contractor

By__________________________          By __________________________

Its_________________________          Its _________________________

                                    App. VII3<PAGE>

                         PURCHASE AGREEMENT NUMBER 2252

                                     between

                          MCDONNELL DOUGLAS CORPORATION

                                       and

                             Hawaiian Airlines, Inc.

                       Relating to Model 717-22A Aircraft

<PAGE>

                                TABLE OF CONTENTS

                                                               SA
ARTICLES                                                      NUMBER

     1.     Quantity, Model and Description

     2.     Delivery Schedule

     3.     Price

     4.     Payment

     5.     Miscellaneous

TABLE

     1.     Aircraft Information Table

EXHIBIT

     A.     Aircraft Configuration

     B.     Aircraft Delivery Requirements and Responsibilities

SUPPLEMENTAL EXHIBITS

     BFE1.  BFE Variables

     CS1.   Customer Support Variables

     EE1.   Engine Escalation/Engine Warranty and Patent Indemnity

     SLP1.  Service Life Policy Components

<PAGE>

LETTER AGREEMENTS

Standard:
2252-1        Customer Support Matters
2252-2        Spares Initial Provisioning

Confidential:
6-1166-EMM-0251   Aircraft Performance Guarantees
6-1166-EMM-0252   Promotional Support
6-1166-EMM-0253   Business Matters
6-1166-EMM-0254   Purchase Rights Aircraft and Aircraft Model  Substitution
6-1166-EMM-0255   Deferred Advance Payments
6-1166-EMM-0272   Liquidated Damages for Non-Excusable Delay
6-1166-EMM-0299   Other Matters
6-1166-EMM-0300   Financing Matters
6-1166-EMM-0301   Spares Commitments

                                       ii
<PAGE>

                           Purchase Agreement No. 2252

                                     between

                          McDonnell Douglas Corporation

                                       and

                             Hawaiian Airlines, Inc.

                        ------------------------------

            This Purchase Agreement No. 2252 (Purchase Agreement) dated as of
_________________between McDonnell Douglas Corporation (MDC), a wholly-owned
subsidiary of The Boeing Company (Boeing), and Hawaiian Airlines, Inc.
(Customer) relating to the purchase and sale of Model 717-22A aircraft
incorporates the terms and conditions of the Aircraft General Terms Agreement
dated as of _________________between Boeing and Hawaiian Airlines, Inc.,
identified as AGTA-HWI (AGTA).

Article 1.  Quantity, Model and Description.

            The aircraft to be delivered to Customer will be designated as Model
717-22A aircraft (the Aircraft). MDC will manufacture and sell to Customer
Aircraft conforming to the configuration described in Exhibit A, which is part
of this Purchase Agreement, in the quantities listed in Table 1 to this Purchase
Agreement.

Article 2.  Delivery Schedule.

            The scheduled months of delivery of the Aircraft are listed in the
attached Table 1, which is part of this Purchase Agreement. Exhibit B, which is
part of this Purchase Agreement, describes certain responsibilities for both
Customer and MDC in order to accomplish the delivery of the Aircraft.

Article 3.  Price.

            3.1 Aircraft Basic Price. The Aircraft Basic Price is listed in
Table 1 in subject to escalation dollars.

            3.2 Advance Payment Base Prices. The Advance Payment Base Prices
listed in Table 1 were calculated utilizing the latest escalation factors
available to Boeing on the date of this Purchase Agreement projected to the
month of scheduled delivery.

                                       1
<PAGE>

            3.3 MDC has not yet established the Aircraft Basic Price for
Aircraft scheduled to be delivered after December 31, 2004. The prices listed in
Table 1 for such Aircraft are only to provide Customer with an estimate of the
applicable Advance Payment Base Prices. Accordingly, the Aircraft Basic Price
for such Aircraft will be the sum of the Airframe Price, Optional Features
Prices and the Engine Price first published by Boeing for the same model of
aircraft and engines to be delivered after December 31, 2004.

Article 4.  Payment.

            4.1 MDC acknowledges receipt of a deposit in the amount shown in
Table 1 for each Aircraft (Deposit).

            4.2 The standard advance payment schedule for the Model 717-22A
aircraft requires Customer to make certain advance payments, expressed as a
percentage of the Advance Payment Base Price of each Aircraft beginning with a
payment of 1%, less the Deposit, on the effective date of this Purchase
Agreement. Additional advance payments for each aircraft are due on the first
business day of the months listed in the attached Table 1. Notwithstanding such
standard schedule, the advance payment terms applicable to this Purchase
Agreement are set forth in Letter Agreement 6-1166-EMM-0255.

            4.3 For any Aircraft whose scheduled month of delivery is less than
24 months from the date of this Purchase Agreement, the total amount of advance
payments due for payment upon signing of this Purchase Agreement will include
all advance payments which are past due in accordance with the standard advance
payment schedule set forth in paragraph 4.2 above.

            4.4 Customer will pay the balance of the Aircraft Price of each
Aircraft at delivery.

Article 5.  Miscellaneous.

            5.1 Aircraft Information Table. Table 1 consolidates information
contained in Articles 1, 2, 3 and 4 with respect to (i) quantity of Aircraft,
(ii) applicable Detail Specification, (iii) month and year of scheduled
deliveries, (iv) Aircraft Basic Price, (v) applicable escalation factors and
(vi) Advance Payment Base Prices and advance payments and their schedules.

            5.2 Buyer Furnished Equipment Variables. Supplemental Exhibit BFE1
contains vendor selection dates, on dock dates and other variables applicable to
the Aircraft.

                                       2
<PAGE>

            5.3 Customer Support Variables. Supplemental Exhibit CS1 contains
the variable information applicable to information, training services and other
things furnished by MDC in support of the Aircraft.

            5.4 Engine Escalation Variables. Supplemental Exhibit EE1 contains
the applicable engine escalation formula, the engine warranty and the engine
patent indemnity for the Aircraft.

            5.5 Service Life Policy Component Variables. Supplemental Exhibit
SLP1 lists the airframe and landing gear components covered by the Service Life
Policy for the Aircraft.

            5.6 Negotiated Agreement; Entire Agreement. This Purchase Agreement,
including the provisions of Article 8.2 of the AGTA relating to insurance, and
Article 11 of Part 2 of Exhibit C of the AGTA relating to DISCLAIMER AND RELEASE
and EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES, has been the subject of
discussion and negotiation and is understood by the parties; the Aircraft Price
and other agreements of the parties stated in this Purchase Agreement were
arrived at in consideration of such provisions. This Purchase Agreement,
including the AGTA, contains the entire agreement between the parties and
supersedes all previous proposals, understandings, commitments or
representations whatsoever, oral or written, and may be changed only in writing
signed by authorized representatives of the parties.

DATED AS OF DECEMBER 31, 1999

Hawaiian Airlines, Inc.              MCDONNELL DOUGLAS CORPORATION
                                     a wholly-owned subsidiary of
                                     THE BOEING COMPANY

By /S/______________________          By /S/____________________

Its_________________________          Its _______________________

By /S/______________________

Its_________________________

                                       3
<PAGE>

                                   Table 1 to
                           Purchase Agreement No. 2252
          Aircraft Delivery, Description, Price and Advance Payments
   P.A. No. 2252

      REDACTED IN ITS ENTIRETY

                                                                          Page 1

<PAGE>

                             AIRCRAFT CONFIGURATION

                                     between

                          MCDONNELL DOUGLAS CORPORATION

                                       and

                             Hawaiian Airlines, Inc.

                 Exhibit A to Purchase Agreement Number 2252

<PAGE>

                             AIRCRAFT CONFIGURATION

                                     Dated

                                   relating to

                             MODEL 717-22A AIRCRAFT

      The Detail Specification is MDC Detail Specification CS 7172E dated as of
February 15, 1999 as amended to incorporate the Specification Change Notices
(SCNs) listed below, including the effects on Manufacturer's Empty Weight (MEW).
The Detail Specification may be further amended in accordance with the
provisions of Article 4 of the AGTA. The Aircraft Basic Price reflects and
includes all effects of such SCNs, except such Aircraft Basic Price does not
include the price effects of any Buyer Furnished Equipment or Buyer Designated
Equipment.

                                      A-1
<PAGE>

                            Hawaiian Airlines 717-200
                                  Configuration

--------------------------------------------------------------------------------
Option Number  Title                                                      PRICE
                                                                           in
                                                                          7/98$,
                                                                           STE
--------------------------------------------------------------------------------
G0100D023      Selectable Program Options                                 _____

               Note: A version of G0100C007E will be prepared once buyer
               selects specific program options
--------------------------------------------------------------------------------
G0201D012      Incorporation of Finish Specification F-109-64.4 for         ____
               Hawaiian Airlines 717-200

               Note: A version of G0201C007 will be prepared once buyer
               selects specific interior finish color, upholstery and
               exterior scheme.
--------------------------------------------------------------------------------
G0320D014      Increase Maximum Landing Weight From 102,000 to 110,000 lb   ____

--------------------------------------------------------------------------------
G1300S002      Revision  To Manufacturer's Empty Weight (1000 lb Weight     ____
               Reduction), October 12, 1999
--------------------------------------------------------------------------------
G2122C001C     Installation of a Gasper Booster Fan System                  ____
--------------------------------------------------------------------------------
G2311C003B     Installation of Complete Provisions for a Single ARINC       ____
               719/753 HF Voice/Data Communications System
--------------------------------------------------------------------------------
G2312C002E     Installation of a Third ARINC 716/750 VHF Communications     ____
               System Utilizing Existing Partial Provisions
--------------------------------------------------------------------------------
G2324C004D     Installation of a Seller-Furnished ARINC 744A Full Format    ____
               Printer
--------------------------------------------------------------------------------
G2324C008A     Installation of a Communications Management Unit (CMU)       ____
               Mark 2 Utilizing Existing Partial Provisions
--------------------------------------------------------------------------------
G2332C003A     Installation of a Matsushita Prerecorded Announcement        ____
               System With Boarding Music
--------------------------------------------------------------------------------
G2460C001B     Installation of Spare Wires (Category I, II, IV)             ____
--------------------------------------------------------------------------------
G2500D041      Installation of a 123-Passenger Mixed Class Interior         ____
               Arrangement for Hawaiian Airlines

               Note: A version of SCN G2500C027B will be created to
               install a custom 123-passenger Mixed Class Interior for
               Hawaiian Airlines
--------------------------------------------------------------------------------
G2500C029      Custom Airline Soft Good Finish Materials                   _____

G2500DTBD      Note: A version of G2500C029 will be prepared once buyer defines
               the soft good finish material. * Price will be adjusted based on
               choice of soft goods.
--------------------------------------------------------------------------------
G2513S005      Installation of the Data Stowage Compartment in Lieu of      ____
               That Specified, September 28, 1999
--------------------------------------------------------------------------------

                                      A-2
<PAGE>

                            Hawaiian Airlines 717-200
                                  Configuration

--------------------------------------------------------------------------------
Option Number  Title                                                      PRICE
                                                                           in
                                                                          7/98$,
                                                                           STE
--------------------------------------------------------------------------------
G2523D005      Certification of a New Seat Program (Non Standard            ____
               Supplier/BE Aerospace)

               Note: A version of G2523C004A will be prepared to reflect
               Hawaiian Airlines selection of new BE/Aerospace seat
               program.
--------------------------------------------------------------------------------
G2524C005      Installation of a Forward Left Hand Windscreen               ____
--------------------------------------------------------------------------------
G2524C007      Installation of a Soft Class Divider (Fixed Location)        ____
--------------------------------------------------------------------------------
G2524C010      Installation of a Right Hand Windscreen With the Removal     ____
               of the G2 Galley
--------------------------------------------------------------------------------
G2525C003      Installation of Asymmetrical Bagracks                        ____
--------------------------------------------------------------------------------
G2531C002A     Definition of Interior Option AL1: Removal of Aft LH         ____
               Lavatory and Installation of Aft LH Galley (Selectable
               Power-Water-Drain)
--------------------------------------------------------------------------------
G2531D016      Certification of a New Galley Program (Non Standard          ____
               Supplier/Driessen)

               Note: A version of G2531C015A will be prepared to reflect
               selection of new Driessen galley program.
--------------------------------------------------------------------------------
G2540C002      Definition of Interior Option FL1: Removal of Forward LH     ____
               Lavatory
--------------------------------------------------------------------------------
G2540C003A     Installation of Partial Provisions for Forward LH Lavatory   ____
--------------------------------------------------------------------------------
G2541C013      Installation of Handicap Facilities in the Aft RH Lavatory   ____
--------------------------------------------------------------------------------
G2551S011      Editorial Revisions of CS7172 to Specify Lower Cargo         ____
               Compartment Type Requirements, dated August 30, 1999
--------------------------------------------------------------------------------
G2800S002      Revision of CS7172 Fuel Requirements to Delete JP-4 and      ____
               Commercial Aviation Kerosene Type B from the Fuel
               Listing, July 30, 1999
--------------------------------------------------------------------------------
G3131C009      Installation of an Allied Signal FDAMS/DFDAU Unit            ____
               (Aircraft Condition Monitoring System)
--------------------------------------------------------------------------------
G3344C002B     Installation of Wing Tip Mounted Logo Lights Utilizing       ____
               Existing Partial Provisions
--------------------------------------------------------------------------------
G3513S005      Revision to CS7172Appendix I (update of Puritan Bennett      ____
               Full-face Oxygen part number), dated June 16, 1999
--------------------------------------------------------------------------------
G3520C002A     Installation of 4-Person Oxygen Insert Assemblies Above      ____
               Each Triple Passenger Seat Assembly and 3-Person Oxygen
               Insert Assemblies Above Each Double Passenger Seat
               Assembly
--------------------------------------------------------------------------------

                                      A-3
<PAGE>

                            Hawaiian Airlines 717-200
                                  Configuration

--------------------------------------------------------------------------------
Option Number  Title                                                      PRICE
                                                                           in
                                                                          7/98$,
                                                                           STE
--------------------------------------------------------------------------------
G5115C006      Addition of Polyurethane Finish to Lower Fuselage (Color     ____
               TBD)
--------------------------------------------------------------------------------
G5724S001      Editorial Revision to CS7172 to clarify 717-200 Vortilon     ____
               Installation Requirements, dated July 9, 1999
--------------------------------------------------------------------------------
G9900DTBD      Selection of Buyer-Furnished Equipment (CS7172 Appendix I    ____
               Listing)

               Note: A SCN will be prepared once the Buyer defines Part
               Numbers and equipment category

               Note: A SCN will be prepared once buyer selects BFE part
               numbers from CS7172E Appendix I Listing.
--------------------------------------------------------------------------------
Total          Price total contingent on firm 13 airplane sale              ____
--------------------------------------------------------------------------------

                                      A-4
<PAGE>

             AIRCRAFT DELIVERY REQUIREMENTS AND RESPONSIBILITIES

                                     between

                          MCDONNELL DOUGLAS CORPORATION

                                       and

                             Hawaiian Airlines, Inc.

                 Exhibit B to Purchase Agreement Number 2252

                                       B
<PAGE>

Exhibit B to
Purchase Agreement No. 2252

             AIRCRAFT DELIVERY REQUIREMENTS AND RESPONSIBILITIES

                                   relating to

                             MODEL 717-22A AIRCRAFT

Both MDC and Customer have certain documentation and approval responsibilities
at various times during the construction cycle of Customer's Aircraft that are
critical to making the delivery of each Aircraft a positive experience for both
parties. This Exhibit B documents those responsibilities and indicates
recommended completion deadlines for the actions to be accomplished.

                                      B-1
<PAGE>

      1.    GOVERNMENT DOCUMENTATION REQUIREMENTS.

Certain actions are required to be taken by Customer in advance of the scheduled
delivery month of each Aircraft with respect to obtaining certain government
issued documentation.

            1.1   Airworthiness and Registration Documents.

                  Not later than 10 months prior to delivery of each Aircraft,
Customer will notify MDC of the registration number to be painted on the side of
the Aircraft. In addition, and not later than 3 months prior to delivery of each
Aircraft, Customer will, by letter to the regulatory authority having
jurisdiction, authorize the temporary use of such registration numbers by MDC
during the pre-delivery testing of the Aircraft.

Customer is also responsible for furnishing any Temporary or Permanent
Registration Certificates required by any governmental authority having
jurisdiction to be displayed aboard the Aircraft after delivery.

            1.2   Certificate of Sanitary Construction.

                  1.2.1 U.S. Registered Aircraft. Prior to delivery, MDC will
obtain from the United States Public Health Service, a United States Certificate
of Sanitary Construction to be displayed aboard each Aircraft after delivery to
Customer.

            1.3   Confirmation of No Prior Registration.

                  MDC will instruct the FAA to confirm to Customer's applicable
regulatory agency that the Aircraft has not been previously registered in the
United States subject to Customer's written request to provide such confirmation
no later that 45 days prior to delivery.

      2. Insurance CertificateS.

            Unless provided earlier, Customer will provide to MDC at the time of
delivery of each Aircraft, a copy of the requisite annual insurance certificate
in accordance with the requirements of Article 8 of the AGTA.

                                      B-2
<PAGE>

Exhibit B to
Purchase Agreement No. 2252

      3     NOTICE OF FLYAWAY CONFIGURATION.

                 3.1      Ownership Placards.

                 If requested by Customer, MDC will fabricate and install
ownership placards on the airframe and/or engines subject to Customer providing
the following information to MDC no later than 30 days prior to delivery:

                 (i)    the legend to appear on the ownership placards, and

                 (ii) the placard installation location such as on the airframe
only, the engines only, or on both the airframe and engines.

            3.2   Delivery Requirements.

            Not later than 7 days prior to delivery of the Aircraft, Customer
will provide to MDC a configuration letter stating the requested "flyaway
configuration" of the Aircraft for its ferry flight. This configuration letter
should include:

            (i) the quantity of fuel to be loaded on the Aircraft prior to the
         ferry flight and any scheduled post-delivery flight training;

            (ii) the cargo to be loaded on the Aircraft including quantity,
         description, weight, part number and value of each item,

            (iii) any BFE equipment to be removed prior to flyaway and returned
         to MDC BFE stores for installation on Customer's subsequent Aircraft;

            (iv) a complete list, including name, title, job function,
         citizenship and passport number, of the crew members and non-revenue
         passengers that will be aboard the ferry flight; and

            (v) a complete ferry flight itinerary.

      4.    DELIVERY ACTIONS BY MDC.

            4.1 Schedule of Inspections. All FAA, MDC, Customer and, if
required, U.S. Customs Bureau inspections will be scheduled by MDC for
completion prior to delivery or departure of the Aircraft. Customer will be
informed of such schedules as soon as practicable by MDC.

            4.2 Schedule of Demonstration Flights. All FAA and Customer
demonstration flights will be scheduled by MDC for completion prior to delivery
of the Aircraft.

                                      B-3
<PAGE>

Exhibit B to
Purchase Agreement No. 2252

            4.3 Schedule for Customer's Flight Crew. MDC will inform Customer of
the date that a flight crew is required for acceptance routines associated with
delivery of the Aircraft no later than 30 days prior to the scheduled month of
aircraft delivery

            4.4 Fuel Provided by MDC. MDC will provide to Customer, without
charge, the amount of fuel shown in U.S. gallons in the table below for the
model of Aircraft being delivered and full capacity of engine oil at the time of
delivery or prior to the ferry flight of the Aircraft.

           Aircraft Model                        Fuel Provided
                 717                                 ______

            4.5 Flight Crew and Passenger Consumables. MDC will provide
reasonable quantities of food, coat hangers, towels, toilet tissue, drinking
cups and soap for the first segment of the ferry flight for the Aircraft.

            4.6 Delivery Papers, Documents and Data. MDC will have available at
the time of delivery of the Aircraft certain delivery papers, documents and data
for execution and delivery. If title for the Aircraft will be transferred to
Customer through a MDC sales subsidiary and if the Aircraft will be registered
with the FAA, MDC will pre-position in Oklahoma City, Oklahoma, for filing with
the FAA at the time of delivery of the Aircraft an executed original Form
8050-2, Aircraft Bill of Sale, indicating transfer of title to the Aircraft from
MDC's sales subsidiary to Customer.

            4.7 Delegation of Authority. If specifically requested in advance by
Customer, MDC will present a certified copy of a Resolution of Boeing's Board of
Directors, designating and authorizing certain persons to act on its behalf in
connection with delivery of the Aircraft.

      5.    DELIVERY ACTIONS BY CUSTOMER.

           5.1 Financing Arrangements. As soon as practicable, Customer will
advise MDC of any special financing arrangements in connection with the delivery
including Customer's intent to assign the Aircraft to a third party at time of
title transfer.

           5.2 BFE Value. No later than 90 days prior to delivery, Customer will
provide a BFE invoice reflecting the total amount of BFE installed on the
Aircraft.

           5.3 Fuel Receipt. At delivery Customer will execute a fuel receipt
acknowledging the amount of fuel loaded on the Aircraft prior to the ferry
flight. Boeing will invoice Customer for this fuel less the amount provided at
no charge as set forth in paragraph 4.4 above.

                                      B-4
<PAGE>

Exhibit B to
Purchase Agreement No. 2252

            5.4 Aircraft Radio Station License. At delivery Customer will
provide its Aircraft Radio Station License to be placed on board the Aircraft
following delivery.

            5.5.  Aircraft Flight Log.    At delivery Customer will provide
the Aircraft Flight Log for the Aircraft.

            5.6 Delegation of Authority. Customer will present to MDC at
delivery of the Aircraft an original or certified copy of Customer's Delegation
of Authority designating and authorizing certain persons to act on its behalf in
connection with delivery of the specified Aircraft.

           5.7 Affidavit of Arrival. No later than 14 days after delivery,
Customer will submit to Boeing an Affidavit of Arrival indicating the date and
airport at which the ferry flight was completed.

                                      B-5
<PAGE>

                       BUYER FURNISHED EQUIPMENT VARIABLES

                                     between

                          MCDONNELL DOUGLAS CORPORATION

                                       and

                             Hawaiian Airlines, Inc.

         Supplemental Exhibit BFE1 to Purchase Agreement Number 2252

                                      BFE1
<PAGE>

                       BUYER FURNISHED EQUIPMENT VARIABLES

                                   relating to

                             MODEL 717-22A AIRCRAFT

This Supplemental Exhibit BFE1 contains vendor selection dates, on-dock dates
and other variables applicable to the Aircraft.

1.    Supplier Selection.

      Customer will:

      1.1 Select and notify MDC of the suppliers of the following BFE items by
the following dates:

            Galley System                 November 24, 1999

            Seats (passenger)             November 24, 1999

2.    On-dock Dates

Within 30 days of executing a definitive agreement for the aircraft, MDC will
provide to Customer a BFE Requirements On-Dock/Inventory Document (BFE Document)
or an electronically transmitted BFE Report which may be periodically revised,
setting forth the items, quantities, on-dock dates and shipping instructions
relating to the in-sequence installation of BFE. For planning purposes, a
preliminary BFE on-dock schedule is set forth below:

                                     BFE1-1
<PAGE>

                           CUSTOMER SUPPORT VARIABLES

                                     between

                          MCDONNELL DOUGLAS CORPORATION

                                       and

                             Hawaiian Airlines, Inc.

          Supplemental Exhibit CS1 to Purchase Agreement Number 2252

                                      CS1
<PAGE>

                           CUSTOMER SUPPORT VARIABLES

                                   relating to

                           MDC MODEL 717-22A AIRCRAFT

Customer and MDC will conduct planning conferences approximately 12 months
before delivery of the first Aircraft, or as otherwise agreed, to develop and
schedule a customized Customer Support Program to be furnished by MDC in support
of the Aircraft.

The customized Customer Services Program will be based upon and equivalent to
the entitlements summarized below.

Part 1:  Maintenance  and Flight  Training  Programs;  Operations  Engineering
Support

1.    Maintenance Training.

      1.1   Airplane General Familiarization Course; 1 class of 24 students;

      1.2    Mechanical/Power Plant Course; 2 classes of 15 students;

      1.3    Electrical Systems Course; 2 classes of 15 students;

      1.4    Avionics Systems Course; 2 classes of 15 students;

      1.5    Composite Repair Course for Technicians; 1 class of 8 students;

      1.6   Corrosion Prevention and Control Course; 1 class of 10 students;

      1.7   Airplane Rigging Course; 1 class of 6 students;

      1.8   Training materials will be provided to each student. In addition,
            one set of training materials used in MDC's training program,
            including visual aids, Computer Based Training Courseware,
            instrument panel wall charts, text/graphics, video programs, etc.
            will be provided for use in Customer's own training program. Items
            will be provided without revision service.

                                     CS1-1
<PAGE>

2.    Flight Training.

      2.1   Transition training for 8 flight crews (16 pilots) The training will
            consist of ground school (utilizing computer based training), fixed
            base simulator, full flight simulator and actual aircraft training
            on Customer's Aircraft.

      2.2   Flight Dispatcher training; 2 classes of 6 students;

      2.3   Flight Attendant training; 2 classes of 12 students;

      2.4   Performance Engineer Training; will be provided at MDC's facility.

      2.5   One copy of the Flight Crew Operating Manual (FCOM) will be provided
            to each student, without revision service. In addition, one set of
            training materials as used in MDC's training program, including
            visual aids, Computer Based Training Courseware, instrument panel
            prints, text/graphics, video programs, etc. will be provided.

      2.6   Additional Flight Operations Services:

            a.    MDC flight crew  personnel  to assist in ferrying  the first
                  aircraft to Customer's main base;

            b.    Instructor pilots for 90 instructor pilot days for revenue
                  service training assistance, exclusive of flight tests,
                  acceptance flights and ferry flights;

            c.    An instructor pilot to visit Customer 6 months after revenue
                  service training to review Customer's flight crew operations
                  for a 2 week period.

                                     CS1-2
<PAGE>

3.    Planning Assistance.

      3.1   Maintenance and Ground Operations.

            a)    Maintenance Program Planning - Provide technical assistance in
                  planning aircraft maintenance requirements and documentation.

            b)    Ground Support Equipment Planning - Recommend ground support
                  equipment necessary for operation of the aircraft and provide
                  a summary of ground support equipment suitable for use in
                  maintenance and servicing.

            c)    Maintenance Engineering Operations Review - Upon request, MDC
                  will conduct a maintenance operations review consisting of
                  assistance to analyze Customer's current maintenance and
                  engineering operational requirements, reliability and
                  maintenance specifications, maintenance costs and reliability
                  accounting practices. The objective of such review is to
                  improve the interactions of operations, engineering,
                  maintenance and logistics for improved operational
                  effectiveness. MDC will provide the findings and
                  recommendations in a report to the Customer. This service will
                  be available until one year after delivery of the last
                  Aircraft.

      3.2   Spares.

            a)    Recommended Spares Parts List (RSPL)
                  Customized RSPL, data and documents will be provided to
                  identify spare parts required for Customer's support program.

            b)    Illustrated Parts Catalog (Provisioning IPC) A customized
                  Provisioning IPC in accordance with ATA 100 will be provided.

            c)    Provisioning Training
                  Provisioning training will be provided for Customer's
                  personnel at MDC's facilities, where documentation and
                  technical expertise are available. Training is focused on the
                  initial provisioning process and calculations reflected in the
                  MDC RSPL.

            d)    Spares Provisioning Conference
                  A provisioning conference will be conducted, normally at MDC's
                  facilities where technical data and personnel are available.

                                     CS1-3
<PAGE>

4.    Technical Publications Data

The following matrix segregates pro-forma documents into two categories:
customized and non-customized. The documents reflected here are those identified
in the 717 "Customer Support Worksheet", 4 October 1999 Revision.

If requested by Customer, and to the extent practicable, manuals listed herein
will be provided to Customer no later than 30 days prior to delivery of the
aircraft.

A. Maintenance Engineering Data

Customized                          Non-Customized
----------                          --------------

1. ________________________         1. Access Door Diagrams & Data Sheets
                                    2. Aircraft Recovery Manual
                                    3. Component Description & Location List
                                    4. FAA Maintenance Review Board Report
                                    5. Maintenance Facility and Equipment
                                        Planning Manual
                                    6. On-Aircraft Maintenance Planning Report
                                    7. Special Tool & Equipment Drawings
                                    8. Support Equipment Summary
                                    9. Aircraft Zoning Report
                                    10. Structural Diagrams Reference Manual

B. Technical Publications Data

Customized                          Non-Customized
----------                          --------------

1. Flight Crew Operating Manual     1. Seller Overhaul/Component Maintenance
2. Aircraft Maintenance Manual         Manuals
3. Systems Schematics Manual        2. Illustrated Tool & Equipment Lists
4. Wiring Diagram Manual            3. Nondestructive Test Manual
5. Illustrated Parts Catalog        4. Nondestructive Testing Standards
                                       Practice Manual
6. Fault Isolation Manual           5. Structural Repair Manual
7. Fault Reporting Manual           6. Service Bulletins
                                    7. Service Bulletin Index
                                    8. Standard Wiring Practices Manual
                                    9. Spares Interchangeability Manual
                                    10. Cross Reference Index

                                     CS1-4
<PAGE>

C. Engineering Data

Customized                          Non-Customized
----------                          --------------

1. FAA Approved Airplane Flight     1. Aircraft Characteristics for Airport
    Manual                             Planning
2. Dispatch Deviation Guide         2. Design Handbook
3. On-Board Wiring Diagram Book     3. Douglas Material Specifications
4. Weight & Balance Manual,         4. Douglas Process Material Index
   Chapter 1                        5. Douglas Process Standards Manual
5. Weight & Balance Manual,         6. Drafting Manual
   Chapter 2                        7. Drawing Section List
6. Weight & Balance Manual,         8. Engineering Drawings
   Chapters 1 & 2 (On-Board         9. Flying Qualities Report
   Copy)                            10. Approved Equivalent Parts List
7. Weight Compliance Report         11. Master Minimum Equipment List
                                    12. Douglas Standards Manual
                                    13. Mater Component List
                                    14. Flight Planning Performance Manual
                                    15. Performance Engineer's Manual
                                    16. Airworthiness Limitation Instructions
                                    17. Standard Computerized Airplane
                                          Performance (SCAP) Module for
                                          Takeoff and Landing

D. Spares Data

Customized                          Non-Customized
----------                          --------------

                                    1.    Overhaul Manual/Component Maintenance
                                          Manual Index
                                    2.    Product Support Supplier Directory
                                    3.    Product Support Supplier Agreements
                                          Manual
                                    4.    Supplier Technical Data
                                    5.    Technical Data Report

D.  Flight Technical

Customized                          Non-Customized
----------                          --------------

                                    1.    Operational Performance Software

                                     CS1-5
<PAGE>

                               ENGINE ESCALATION,
                      ENGINE WARRANTY AND PATENT INDEMNITY

                                     between

                          MCDONNELL DOUGLAS CORPORATION

                                       and

                             Hawaiian Airlines, Inc.

          Supplemental Exhibit EE1 to Purchase Agreement Number 2252

                                      EE1
<PAGE>

                               ENGINE ESCALATION,
                      ENGINE WARRANTY AND PATENT INDEMNITY

                                   relating to

                             MODEL 717-22A AIRCRAFT

1. ENGINE ESCALATION. No separate engine escalation methodology is defined for
the 717-200 Aircraft. Pursuant to the AGTA, the engine prices for these Aircraft
are included in and will be escalated in the same manner as the Airframe.

2. ENGINE WARRANTY AND PRODUCT SUPPORT PLAN. MDC has obtained from BMW
Rolls-Royce GmbH the right to extend to Customer the provisions of BMW
Rolls-Royce Warranty Agreement "BR715 Engine Warranty Agreement" (hereafter
referred to as "Warranty Agreement") subject, however to Customer's acceptance
of the conditions set forth therein. Accordingly, MDC hereby extends to Customer
and Customer hereby accepts that the provisions of the Warranty Agreement shall
apply to Engines installed in the Aircraft at the time of delivery, provided
that the Customer may, by notice given to MDC and BMW Rolls-Royce prior to
delivery of the Aircraft, elect to substitute for the Warranty Agreement any
corresponding warranty included either in a General Terms Agreement currently
effective between Customer and BMW Rolls-Royce or in a contract for the sale by
BMW Rolls-Royce to Customer of engines. In consideration for such extension,
Customer hereby releases and discharges MDC from any and all claims, obligations
and liabilities whatsoever arising out of the purchase or use of said installed
engines and releases and discharges BMW Rolls-Royce from any and all claims,
obligations and liabilities whatsoever arising out of the purchase or use of
said installed engines except as otherwise expressly assumed by BMW Rolls-Royce
in such Warranty Agreement.

Copies of this Warranty Agreement may be obtained directly from BMW Rolls-Royce.

                                     EE1-1
<PAGE>

                         SERVICE LIFE POLICY COMPONENTS

                                     between

                          MCDONNELL DOUGLAS CORPORATION

                                       and

                             Hawaiian Airlines, Inc.

         Supplemental Exhibit SLP1 to Purchase Agreement Number 2252

                                      SLP1
<PAGE>

                         SERVICE LIFE POLICY COMPONENTS

                                   relating to

                             MDC MODEL 717 AIRCRAFT

This is the listing of SLP Components for the Aircraft which relate to Part 3,
Boeing Service Life Policy of Exhibit C, Product Assurance Document to the AGTA
and is a part of Purchase Agreement No. 2252.

1.    Pylons

         (a) Front engine mount yoke
         (b) Spars (including spar caps, webs and stiffeners)
         (c) Front engine mount to pylon attach fitting
         (d) Aft engine mount to pylon attach fitting
         (e) Upper and lower skin and stiffeners between spars
         (f) Pylon to fuselage attach angles and fittings

2.    Wings

         (a) Front and rear spars (including spar caps, webs and stiffeners)
         (b) Upper and lower stringers and skin between spars
         (c) Landing gear bulkhead and landing gear attach fitting
         (d) Bulkhead at side of fuselage, including trapezoidal panel
         (e) Ribs in the wing
         (f) Wing to fuselage attach tee
         (g) Wing flap attach fittings

3.    Fuselage

         Frames, plating, longerons and pressure bulkheads, but excluding all
non-load carrying access doors.

4.    Empennage

         (a) Vertical stabilizer spars and skin between spars
         (b) Aft fuselage vertical stabilizer carry-through structure
         (c) Horizontal stabilizer spars, integral skin and stringers between
             spars, and pivot fittings

                                     SLP1
<PAGE>

5.    Landing Gear Components

       (1) Main Gear

          (a) Cylinder
          (b) Piston/axle
          (c) Side brace (upper and lower)
          (d) Fixed side brace
          (e) Orifice support tube
          (f) Torque links

       (2) Nose Gear

          (a) Housing
          (b) Piston
          (c) Axle
          (d) Orifice support tube
          (e) Cylinder
          (f) Torque links
          (g) Cross tube
          (h) Drag links (upper and lower)

NOTE: The Service Life Policy does not cover any bearings, bolts, bushings,
clamps, brackets, actuating mechanisms or latching mechanisms used in or on
the Covered Components.

<PAGE>

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Customer Services Matters

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement) between
            McDonnell Douglas Corporation (MDC) and Hawaiian Airlines, Inc.
            (Customer) relating to Model 717-22A aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. All terms
used but not defined in this Letter Agreement have the same meaning as in the
Purchase Agreement.

1.    Maintenance Training.

      Customer and Boeing agree that Boeing shall provide the following training
according to a mutually agreed schedule in lieu of the maintenance training
specified in paragraphs 1.1 through 1.7 of Supplemental Exhibit CS1 to the
Purchase Agreement. For courses conducted in Honolulu, Customer agrees to
provide round-trip air transportation and hotel accomodations for all
instructors, at no additional cost to Boeing. Boeing agrees to provide all other
related per diem expenses (excluding hotel accomodations) for instructors
conducting training in Honolulu.

a.    ________________________________________________________

b.    ________________________________________________________

c.    ________________________________________________________

d.    ________________________________________________________

e.    ________________________________________________________

f.    ________________________________________________________

g.    ________________________________________________________

<PAGE>

Hawaiian Airlines, Inc.
2252-1
Page 2
12/16/99

h.    ________________________________________________________

i.    ________________________________________________________

j.    ________________________________________________________

k.    ________________________________________________________

l.    ________________________________________________________

m.    ________________________________________________________

2.    Flight Training.

      Customer and MDC agree that MDC shall provide the following training in
addition to the flight training specified in paragraph 2 of Supplemental Exhibit
CS1 to the Purchase Agreement.

a.    _______________________________________________

b.    _______________________________________________

                  ___________________________________

                  ___________________________________

3.    Training in Honolulu.

      In accordance with paragraph 1.2 of Part B of AGTA-HWI MDC will conduct
all training at MDC's training facility in Long Beach unless otherwise set forth
above or agreed. If Customer wishes to have any additional training conducted at
its facilities in Honolulu, the provisions of paragraph 4 of Part 1, Exhibit B
of AGTA-HWI shall apply.

4.    Confidential Treatment.

      Customer understands that certain commercial and financial information
contained in this Letter Agreement are considered by MDC as confidential.
Customer agrees that it will treat this Letter Agreement and the information
contained herein as confidential and will not, without the prior written consent
of MDC, disclose this Letter Agreement or any information contained herein to
any other person or entity.

<PAGE>

Hawaiian Airlines, Inc.
2252-1
Page 3
12/16/99

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By  /S/
    -----------------------
Its Attorney-In-Fact
    -----------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

Hawaiian Airlines, Inc.

By  /S/
    -----------------------
Its
    -----------------------

By   /S/
    -----------------------
Its
    -----------------------

<PAGE>

2252-2

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Spares Initial Provisioning

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to Model
            717-22A aircraft (the Aircraft)

This Letter Agreement is entered into on the date below, and amends and
supplements the Purchase Agreement. All terms used but not defined in this
Letter Agreement have the same meaning as in the Purchase Agreement.

1.    Applicability.

      This letter will apply to initial provisioning for the Model 717-22A
Aircraft purchased by Customer under the Purchase Agreement.

2.    Initial Provisioning Meeting.

      MDC will conduct an initial provisioning meeting (Initial Provisioning
Meeting) with Customer to establish mutually agreeable procedures to accomplish
Customer's initial provisioning of spare parts for the Aircraft. The parties
will agree, during the Initial Provisioning Meeting on the operational data to
be provided by Customer for MDC's use in preparing its quantity recommendations
for initial provisioning of spare parts for the Aircraft, exclusive of special
tools, ground support equipment, engines and engine parts (Provisioning Items).
Such operational data to be provided by Customer will be the data described in
Chapter 6 of Boeing Manual D6-81834, entitled "Spares Provisioning Products
Guide" (Boeing Spares Provisioning Products Guide) which will be furnished to
Customer prior to the Initial Provisioning Meeting. The parties will also agree
on the provisioning documentation to be provided by MDC as described in Boeing
Spares Provisioning Products Guide (such data will be hereinafter referred to
collectively as the "Provisioning Data"). MDC will provide instruction in the
use of the initial provisioning documentation. This instruction will be provided
in conjunction with the Initial Provisioning Meeting. In addition, the parties
will discuss spares ordering procedures and other matters related to the
provisioning for the Aircraft. The time and location for such Initial
Provisioning Meeting will be mutually agreed upon between the parties; however,
MDC and Customer will use their best efforts to convene such meeting within 30
days after execution of the Purchase Agreement.

<PAGE>

Hawaiian Airlines, Inc.
2252-2   Page 2 of  7

3.    Initial Provisioning Documentation.

      3.1 Provisioning Data. MDC will furnish Provisioning Data to Customer on
or about February 15, 2000. The Provisioning Data will be as complete as
possible and will cover Provisioning Items selected by MDC for review by
Customer for initial provisioning for the Aircraft. The Provisioning Data will
set forth the prices for Provisioning Items which are Boeing Spare Parts and
such prices will be firm and remain in effect until the date or dates set forth
below in Paragraph 4.1, Boeing Spare Parts, by which orders must be placed with
Boeing. Boeing will, from time to time, until a date approximately 90 days
following delivery of the last Aircraft or until the delivery configuration of
each of the Aircraft is reflected in the Provisioning Data, whichever is later,
furnish to Customer revisions to the Provisioning Data.

      3.2 Provisioning IPC. Boeing will, on or about February 15, 2000, furnish
to Customer a Boeing Illustrated Parts Catalog (IPC), hereinafter referred to as
the "Provisioning IPC". The Provisioning IPC will be as complete as possible and
will cover Provisioning Items selected by Boeing for review by Customer for
initial provisioning for the Aircraft. Boeing will, from time to time, until a
date approximately one year following delivery of the last Aircraft, or until
the delivery configuration of each of the Aircraft is reflected in the
Provisioning IPC, whichever is later, furnish to Customer revisions to the
Provisioning IPC.

         3.3     Buyer Furnished Equipment (BFE) Provisioning
                 Data.

            3.3.1 MDC's Responsibility. MDC will include BFE end items in the
Provisioning Data and Provisioning IPC for BFE installed on Customer's Aircraft
provided such equipment has been installed on other Aircraft by MDC and MDC has
data on the BFE.

            3.3.2 Customer's Responsibility. Customer will be responsible for
ensuring BFE data is provided to MDC by the BFE supplier in a format acceptable
to MDC for BFE not covered by 3.3.1 above. If the data is not provided to MDC in
a timely manner and in a format acceptable to MDC , such BFE equipment will not
be included in MDC 's Provisioning Data or IPC.

      3.4 Other Data. MDC will submit to Customer listings of Raw Materials,
Standard Parts and Bulk Materials to be used by Customer in the maintenance and
repair of the Aircraft.

4.       Purchase from MDC of Spare Parts as Initial Provisioning for the
         Aircraft.

<PAGE>

Hawaiian Airlines, Inc.
2252-2   Page 3 of  7

      4.1 Boeing Spare Parts. Customer will place orders for Provisioning Items
by March 16, 2000; provided, however, that in those instances where MDC submits
any revision to the Provisioning Data, Customer will place orders for Boeing
Spare Parts covered by such revision within 60 days following the date of such
submittal. At Customer's request, MDC will process "controlled shipments" by
shipping full or partial quantities of an order on a schedule specified by
Customer, provided the final shipment is made no later than 24 months after
receipt of the order.

      4.2 Supplier Provisioning Items. Customer may place orders with Boeing for
Provisioning Items which are manufactured by suppliers or to their detailed
design and are covered by the Provisioning Data as initial provisioning for the
Aircraft. The price to Customer for any such supplier Provisioning Item will be
____ of the supplier's quoted price to MDC therefor. If Customer elects to
purchase such supplier Provisioning Items from Boeing, Customer will place its
orders therefor in accordance with the provisions of Paragraph 4.1, Boeing Spare
Parts.

      4.3 Ground Support Equipment and Special Tools. Customer may place orders
with Boeing for ground support equipment (GSE) and special tools manufactured by
suppliers which Customer determines it will initially require for maintenance,
overhaul and servicing of the Aircraft and/or engines. The price to Customer for
such GSE or special tools will be _____________________ of the supplier's quoted
price to Boeing therefor. If Customer elects to purchase such GSE and special
tools from Boeing, Customer will place its orders therefor by the date set forth
in Paragraph 4.1, Boeing Spare Parts or such later date as the parties may
mutually agree.

      4.4 Spare Engines and Engine Spare Parts. Customer may place orders with
Boeing for spare engines and/or engine spare parts which Customer determines it
will initially require for support of the Aircraft or for maintenance and
overhaul of the engines. The price to Customer for such spare engines or such
engine spare parts, will be ____ of the engine manufacturer's quoted price to
Boeing for the engine, and ____ of the engine manufacturer's quoted price to
Boeing for the engine spare parts. If Customer elects to purchase such spare
engines or engine spare parts through Boeing, Customer will place its orders on
a date to be mutually agreed upon during the Initial Provisioning Meeting.

      4.5 QEC Kits. Responsibility for engine support and QEC kits belongs to
the engine manufacturer BRR, and B.F. Goodrich (formerly Rohr) respectively.
Boeing will, if requested by Buyer, review data provided by said manufacturers.

<PAGE>

Hawaiian Airlines, Inc.
2252-2   Page 4 of  7

      4.6 Payment for Provisioning Items. The payment provisions of the Customer
Services General Terms Agreement (CSGTA) between Boeing and Customer will be
applicable to Provisioning Items ordered by Customer from Boeing for the
Aircraft.

5.    Delivery.

      MDC will, insofar as reasonably possible, deliver to Customer the Spare
Parts ordered by Customer in accordance with the provisions of this letter on
dates reasonably calculated to conform to Customer's anticipated needs in view
of the scheduled deliveries of the Aircraft. Customer and MDC will agree upon
the date to begin delivery of the Provisioning Spare Parts ordered in accordance
with this letter. Where appropriate, MDC will arrange for shipment of such Spare
Parts, which are manufactured by suppliers, directly to Customer from the
applicable supplier's facility. The routing and method of shipment for initial
deliveries and all subsequent deliveries of such Spare Parts will be as mutually
agreed between MDC and Customer.

6.    Substitution for Obsolete Spare Parts.

      6.1 Obligation to Substitute. In the event that, prior to delivery of the
first Aircraft pursuant to the Purchase Agreement, any Spare Part purchased by
Customer from MDC in accordance with this letter is rendered obsolete or
unusable due to the redesign of the Aircraft or of any accessory, equipment or
part therefor, (other than a redesign at Customer's request), MDC will deliver
to Customer new and usable Spare Parts in substitution for such obsolete or
unusable Spare Parts and Customer will return the obsolete or unusable Spare
Parts to MDC. MDC will credit Customer's account with MDC with the price paid by
Customer for any such obsolete or unusable Spare Part and will invoice Customer
for the purchase price of any such substitute Spare Part delivered to Customer.

      6.2 Delivery of Obsolete Spare Parts and Substitutes Therefor. Obsolete or
unusable Spare Parts returned by Customer pursuant to this Item will be
delivered to Boeing at its Seattle Distribution Center, or such other
destination as Boeing may reasonably designate. Spare Parts substituted for such
returned obsolete or unusable Spare Parts will be delivered to Customer at
Boeing's Seattle Distribution Center, or such other Boeing shipping point as
Boeing may reasonably designate. Boeing will pay the freight charges for the
shipment from Customer to Boeing of any such obsolete or unusable Spare Part and
for the shipment from Boeing to Customer of any such substitute Spare Part.

7.    Repurchase of Provisioning Items.

      7.1 Obligation to Repurchase. During a period commencing 1 year after
delivery of the first Aircraft under the Purchase Agreement, and ending ____
years after delivery of the last aircraft, (provided such delivery occurs no
later than December 2001), Boeing will, upon receipt of Customer's written
request and subject to the exceptions in Paragraph 7.2, Exceptions, repurchase
unused and undamaged Provisioning Items which (i) were recommended by MDC in the
Provisioning Data as initial provisioning for the Aircraft, (ii) were purchased
by Customer from Boeing, and (iii) are surplus to Customer's needs.

<PAGE>

Hawaiian Airlines, Inc.
2252-2   Page 5 of  7

      7.2 Exceptions. Boeing will not be obligated under Paragraph 7.1,
Obligation to Repurchase, to repurchase any of the following: (i) quantities of
Provisioning Items in excess of those quantities recommended by Boeing in the
Provisioning Data for the Aircraft, (ii), Bulk Material Kits, Raw Material Kits,
Service Bulletin Kits, Standards Kits and components thereof (except those
components listed separately in the Provisioning Data), (iii) Provisioning Items
for which an order was received by Boeing more than 5 months after delivery of
the last Aircraft, (iv) Provisioning Items which have become obsolete or have
been replaced by other Provisioning Items as a result of (a) Customer's
modification of the Aircraft or (b) design improvements by Boeing or the
supplier (other than Provisioning Items which have become obsolete because of a
defect in design if such defect has not been remedied by an offer by Boeing or
the supplier to provide no charge retrofit kits or replacement parts which
correct such defect), and (v) Provisioning Items which become excess as a result
of a change in Customer's operating parameters, provided to MDC pursuant to the
Initial Provisioning meeting in Paragraph 2, which were the basis of MDC 's
initial provisioning recommendations for the Aircraft.

      7.3 Notification and Format. Customer will notify MDC, in writing, when
Customer desires to return Provisioning Items which Customer's review indicates
are eligible for repurchase by Boeing under the provisions of this Repurchase of
Provisioning Items paragraph. Customer's notification will include a detailed
summary, in part number sequence, of the Provisioning Items Customer desires to
return. Such summary will be in the form of listings, tapes, diskettes or other
media as may be mutually agreed between MDC and Customer, and will include part
number, nomenclature, purchase order number, purchase order date and quantity to
be returned. Within 5 business days after receipt of Customer's notification,
Boeing will advise Customer, in writing, when Boeing's review of such summary
will be completed.

      7.4 Review and Acceptance by Boeing. Upon completion of Boeing's review of
any detailed summary submitted by Customer pursuant to Paragraph 7.3, Boeing
will issue to Customer a Material Return Authorization (MRA) for those
Provisioning Items Boeing agrees are eligible for repurchase in accordance with
this Repurchase of Provisioning Items paragraph. Boeing will advise Customer of
the reason that any spare part included in Customer's detailed summary is not
eligible for return. Boeing's MRA will state the date by which Provisioning
Items listed in the MRA must be redelivered to Boeing and Customer will arrange
for shipment of such Provisioning Items accordingly.

<PAGE>

Hawaiian Airlines, Inc.
2252-2   Page 6 of  7

      7.5 Price and Payment. The price of each Provisioning Item repurchased by
Boeing pursuant to this Repurchase of Provisioning Items paragraph will be an
amount equal to ____ of the original invoice price thereof. In the case of
Provisioning Items manufactured by a supplier which were purchased pursuant to
Paragraph 4, Purchase from MDC of Spare Parts as Initial Provisioning for the
Aircraft, hereof the repurchase price will not include Boeing's ____ handling
charge. MDC will pay the repurchase price by issuing a credit memorandum in
favor of Customer which may be applied against amounts due MDC for the purchase
of aircraft, Spare Parts, services or data.

      7.6 Delivery of Provisioning Items. Provisioning Items repurchased by
Boeing pursuant to this Repurchase of Provisioning Items paragraph will be
delivered to Boeing F.O.B. at its Seattle Distribution Center, or such other
destination as Boeing may reasonably designate. Customer will pay the freight
charges for the shipment from Customer to Boeing of any such Provisioning Items.

8.       Obsolete Spare Parts and Surplus Provisioning Items - Title and Risk of
         Loss.

      Title to and risk of loss of any obsolete or unusable Spare Parts returned
to Boeing pursuant to Paragraph 6, Substitution for Obsolete Spare Parts, will
pass to Boeing upon delivery thereof to Boeing. Title to and risk of loss of any
Spare Part substituted for an obsolete or unusable Spare Part pursuant to
Paragraph 6, Substitution for Obsolete Spare Parts, will pass to Customer upon
delivery thereof to Customer. Title to and risk of loss of any Provisioning Item
repurchased by Boeing pursuant to Paragraph 7, Repurchase of Provisioning Items,
will pass to Boeing upon delivery thereof to Boeing. With respect to the
obsolete or unusable Spare Parts which may be returned to Boeing and the Spare
Parts substituted therefor, pursuant to Paragraph 6, and the Provisioning Items
which may be repurchased by Boeing, pursuant to Paragraph 7, the party which has
risk of loss of any such Spare Part or Provisioning Item will have the
responsibility of providing any insurance coverage for it desired by such party.

9.    Supplier Support.

      Boeing has entered, or anticipates entering, into product support
agreements with suppliers (Boeing Suppliers) of major system components
manufactured by such Suppliers to be installed on the Aircraft (Supplier
Components). Such product support agreements commit, or are expected to commit,
the Boeing Suppliers to provide to Boeing's customers and/or such customer's
designees support services with respect to the Supplier Components which can be
reasonably expected to be required during the course of normal operation. This
support includes but is not limited to shelf-stock of certain spare parts,
emergency spare parts, timely delivery of spare parts, and technical data
related to the Supplier Components. Copies of such product support agreements
will be provided to Customer on or about December 15, 1999, unless requested
earlier by Customer , in Boeing Document D6-56115, Volumes 1 and 2. In the event
Customer has used due diligence in attempting to resolve any difficulty arising
in normal business transactions between Customer and a Boeing Supplier with
respect to product support for a Supplier Component manufactured by such
Supplier and if such difficulty remains unresolved, MDC will, if requested by
Customer, assist Customer in resolving such difficulty. Assistance will be
provided by the Customer Supplier Services organization.

<PAGE>

Hawaiian Airlines, Inc.
2252-2   Page 7 of  7

10.      Termination for Excusable Delay.

      In the event of termination of the Purchase Agreement with respect to any
Aircraft pursuant to Article 7 of the AGTA, such termination will, if Customer
so requests by written notice received by Boeing within 15 days after such
termination, also discharge and terminate all obligations and liabilities of the
parties as to any Spare Parts which Customer had ordered pursuant to the
provisions of this letter as initial provisioning for such Aircraft and which
are undelivered on the date Boeing receives such written notice.

Very truly yours,

MCDONNELL DLUGLAS CORPORATION
A wholly-owned subsidiary of
THE BOEING COMPANY

By  /S/
    -------------------------
Its     Attorney-In-Fact
    -------------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

HAWAIIAN AIRLINES, INC.

By   /S/                             By   /S/
    -------------------------           -------------------------
Its                                  Its
    -------------------------           -------------------------

<PAGE>

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Aircraft Performance Guarantees

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to Model
            717-22A aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. All terms
used but not defined in this Letter Agreement have the same meaning as in the
Purchase Agreement.

MDC agrees to provide Customer with the performance guarantees in the
Attachment. These guarantees are exclusive and expire upon delivery of the
Aircraft to Customer.

Customer agrees not to disclose this Letter Agreement, attachments, or any other
information related to this Letter Agreement without prior written consent by
MDC, except to the extent that such disclosure is required by law or by any
Government Entity (as such term is defined below), provided that Customer gives
reasonable notice to MDC so as to enable MDC to seek appropriate protective
orders or, if possible, challenge the requirement of such disclosure. As used
herein, "Government Entity" means (i)any national government, political
subdivision thereof, or local jurisdiction therein, (ii) any instrumentality,
board, commission, court, or agency of any of the above, however constituted,
and (iii) any association, organization, or institution of which any of the
above is a member or to whose jurisdiction any therof is subject or in whose
activities any of the above is a participant.

<PAGE>

Hawaiian Airlines, Inc.
6-1166-EMM-0251   Page 2

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By  /S/
   -------------------------------
Its  Attorney-In-Fact
   -------------------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

Hawaiian Airlines, Inc.

By   /S/
   -------------------------------
Its
   -------------------------------

By   /S/
   -------------------------------
Its
   -------------------------------

<PAGE>

Attachment to Letter Agreement
No. 6-1166-EMM-0251
BR715-A1-30 Engines
Page 1

REDACTED IN ITS ENTIRETY.

<PAGE>

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Promotional Support

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to
            Model 717-22A aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. All terms
used but not defined in this Letter Agreement have the same meaning as in the
Purchase Agreement.

MDC agrees to make available to Customer an aggregate of $__________ (the
Promotional Funds) for Customer's marketing and promotion programs associated
with the introduction of the Aircraft into service with Customer. Of the
Promotional Funds, $__________ will be made available on or after the date the
first Aircraft is delivered to Customer, and $__________ will be made available
on or after the date each subsequent Aircraft is delivered to Customer. The
Promotional Funds may be used to pay for various promotional programs with
respect to any or all of the Aircraft including, without limitation: marketing
research; tourism development; corporate identity; direct marketing; videotape,
or still photography; planning, design and production of collateral materials;
management of promotion programs and advertising campaigns.

By way of example, upon the delivery of the second Aircraft to Customer,
assuming that Customer has not presented any receipts for payment prior to such
date, Customer would be able to present to MDC for payment receipts totalling
$__________ for programs relating to the introduction of either or both Aircraft
or related to the introduction of the new fleet of Aircraft.

MDC's obligation to provide the Promotional Funds will commence upon execution
of the Purchase Agreement and will terminate __________ from the date the last
firm Aircraft is delivered to Customer, as such date may be extended as a result
of Excusable Delay (as such term is defined in the AGTA) on the part of MDC.
Payments to Customer of Promotional Funds then available will be made to
Customer within thirty (30) days after Customer's presentation to MDC of
invoices or paid receipts evidencing the incurrence by Customer of costs for
such promotional programs, whether incurred before or after the delivery of any
Aircraft. If there are any unused Promotional Funds upon the expiration of MDC's
obligation to provide the Promotional Funds, there will be no cash payments or
other support in lieu thereof.

<PAGE>

Hawaiian Airlines, Inc.
6-1166-EMM-0252   Page 2

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By  /S/
  -------------------------------
Its    Attorney-In-Fact
  -------------------------------

ACCEPTED AND AGREED TO this

Date:   December 31, 1999

Hawaiian Airlines, Inc.

By   /S/
  -------------------------------
Its
  -------------------------------

By    /S/
  -------------------------------
Its
  -------------------------------

<PAGE>

Hawaiian Airlines, Inc.
6-1166-EMM-0253
Page 1 of 4

6-1166-EMM-0253

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:     Business Matters

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to
            Model 717-22A aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. All terms
used but not defined in this Letter Agreement have the same meaning as in the
Purchase Agreement.

In consideration of Customer's purchase of the Aircraft, MDC will provide the
following incentives:

1.   ___________________.

__________________________________________________________________

__________________________________________________________________

2.    ___________________.

__________________________________________________________________

__________________________________________________________________

3.    ___________________.

__________________________________________________________________

4.    ___________________.

__________________________________________________________________

<PAGE>

Hawaiian Airlines, Inc.
6-1166-EMM-0253
Page 2 of 4

5.    ___________________.

__________________________________________________________________

Such credit memorandum is applicable to each of the thirteen firm aircraft
listed in Table 1 to the Purchase Agreement, and may be used by Customer for
purchase of Boeing proprietary spare parts, other Boeing goods and services, or
applied toward final payment for the respective Aircraft, but may not be used
for advance payments.

In the event the documents listed above are not signed by the time and date
specified, MDC's offer to provide the Executive Closing Credit Memorandum will
be withdrawn.

6.    ___________________.

__________________________________________________________________

7.    Terms and Application of Credit Memoranda

The credit memoranda described herein are applicable to the Aircraft only and
require purchase of the Aircraft as described in Table 1. Except as specifically
otherwise provided for in paragraph 2 above, the credit memoranda set forth
above may be used by Customer toward the purchase of Boeing proprietary spare
parts, goods and services or, applied toward final payment of the purchase price
of the Aircraft at the time of delivery, but may not be applied toward advance
payments.

8.    Assignment.

The Credit Memoranda described in this Letter Agreement are provided as a
financial accommodation to Customer in consideration of Customer becoming the
operator of the Aircraft, and cannot be assigned, in whole or in part, without
the prior written consent of MDC.

9.    Confidential Treatment.

Customer understands that certain commercial and financial information contained
in this Letter Agreement are considered by MDC as confidential. Customer agrees
that it will treat this Letter Agreement and the information contained herein as
confidential and will not, without the prior written consent of MDC, disclose
this Letter Agreement or any information contained herein to any other person or
entity , except to the extent that such disclosure is required by law or by any
Government Entity (as such term is defined below), provided that Customer gives
reasonable notice to MDC so as to enable MDC to seek appropriate protective
orders or, if possible, challenge the requirement of such disclosure. As used
herein, "Government Entity" means (i) any national government, political
subdivision thereof, or local jurisdiction therein, (ii) any instrumentality,
board, commission, court, or agency of any of the above, however constituted,
and (iii) any association, organization, or institution of which any of the
above is a member or to whose jurisdiction any thereof is subject or in whose
activities any of the above is a participant.

<PAGE>
Hawaiian Airlines, Inc.
6-1166-EMM-0253
Page 2 of 4

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By  /S/
    -----------------------------------
Its           Attorney-In-Fact
    -----------------------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

Hawaiian Airlines, Inc.

By  /S/
    -----------------------------------
Its
    -----------------------------------

By   /S/
    -----------------------------------
Its
    -----------------------------------

<PAGE>

Attachment to:  6-1166-EMM-300

            Advance Payments Summary      BOEING PROPRIETARY

Redacted in its entirety.

<PAGE>

6-1166-EMM-0254

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Purchase Rights Aircraft and Aircraft Model
            Substitution.

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to
            Model 717-22A aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. All terms
used but not defined in this Letter Agreement have the same meaning as in the
Purchase Agreement.

1.    Purchase Rights Aircraft

In addition to the thirteen firm Aircraft, MDC is pleased to offer Customer
rights to purchase up to seven (7) additional 717-200 aircraft (Purchase Rights
Aircraft). For each Purchase Rights Aircraft Customer firmly purchases, one new
Purchase Rights Aircraft will be offered to Customer, up to an aggregate of
seven Purchase Rights Aircraft.

------------------------------------------------------------------

------------------------------------------------------------------

------------------------------------------------------------------

All Purchase Right Aircraft are STAP (subject to available position). Customer
agrees to provide written notice to MDC of Purchase Right exercise twenty-four
months prior to its requested aircraft delivery. Upon written request by
Customer, Boeing will advise availability of delivery positions.

2.    Assignment

The Purchase Rights described in this Letter Agreement are provided as an
accommodation to Customer in consideration of Customer becoming the operator of
the Aircraft, and cannot be assigned, in whole or in part, without the prior
written consent of MDC.

<PAGE>

Hawaiian Airlines, Inc.
6-1166-EMM-0254
Page 2 of  3

3. Right to Substitute New Derivative Model 717 Aircraft.

Currently MDC does not offer, or have firm plans to offer, a derivative aircraft
of the Model 717-200 aircraft. Customer has requested the right to substitute
the purchase of Model 717 derivative aircraft, in the event MDC should offer
such derivative aircraft, for Purchase Right Aircraft No. 3 through No. 7,
described in paragraph 1. above.

In the event MDC decides to offer to manufacture and sell a Model 717 derivative
aircraft and subject to certain lead time constraints, new model introduction,
production and configuration issues, aircraft price, business terms and delivery
schedule being mutually agreed upon by MDC and Customer during detailed
contractual discussions, Customer is hereby granted a right of model
substitution between the Model 717 derivative aircraft and Purchase Right
Aircraft No. 3 through No. 7. The timing requirement for Customer's notification
of substitution for Purchase Right Aircraft No. 3 through No. 7 will require
further discussion at the technical level; but in any event such notification
shall be no later than December 31, 2003.

Customer's substitution right and MDC's obligation in this Letter Agreement is
further conditioned upon Customer and MDC executing a definitive agreement for
the purchase of one or more Purchase Rights Aircraft (for Purchase Rights
Aircraft No.3 and on).

4.    Confidential Treatment.

Customer understands that certain commercial and financial information contained
in this Letter Agreement are considered by MDC as confidential. Customer agrees
that it will treat this Letter Agreement and the information contained herein as
confidential and will not, without the prior written consent of MDC, disclose
this Letter Agreement or any information contained herein to any other person or
entity , except to the extent that such disclosure is required by law or by any
Government Entity (as such term is defined below), provided that Customer gives
reasonable notice to MDC so as to enable MDC to seek appropriate protective
orders or, if possible, challenge the requirement of such disclosure. As used
herein, "Government Entity" means (i) any national government, political
subdivision thereof, or local jurisdiction therein, (ii) any instrumentality,
board, commission, court, or agency of any of the above, however constituted,
and (iii) any association, organization, or institution of which any of the
above is a member or to whose jurisdiction any therof is subject or in whose
activities any of the above is a participant.

<PAGE>
Hawaiian Airlines, Inc.
6-1166-EMM-0254
Page 2 of  3

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By  /S/
    ------------------------------
Its    Attorney-In-Fact
    ------------------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

Hawaiian Airlines, Inc.

By   /S/
    ------------------------------
Its
    ------------------------------

By    /S/
    ------------------------------
Its
    ------------------------------

<PAGE>

6-1166-EMM-272

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Liquidated Damages - Non-Excusable Delay

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to
            Model 717-22A aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. All terms
used but not defined in this Letter Agreement have the same meaning as in the
Purchase Agreement.

Definition of Terms:

Non-Excusable Delay: Delay in delivery of any Aircraft beyond the last day of
the delivery month established in the Purchase Agreement by any cause that is
not an Excusable Delay pursuant to Article 7 of the AGTA.

1.    Liquidated Damages

      MDC agrees to pay Customer liquidated damages for each day of
Non-Excusable Delay in excess of _______ (collectively the Non-Excusable Delay
Payment Period) at a rate of $_______ per day (Liquidated Damages). The total
amount of such Liquidated Damages will not exceed an aggregate sum of
$____________ per aircraft.

2.    Interest

      In addition to the Liquidated Damages in Paragraph 1, MDC will pay to
Customer interest (Interest) commencing _______ after the Scheduled Delivery as
follows:

      The daily Interest shall be the product of the daily interest rate
      (computed by dividing the interest rate in effect for each day by 365
      days, or 366 days, as the case may be) times the entire amount of advance
      payments received by MDC for such Aircraft. The interest rate will be the
      _______________ as published in the Wall Street Journal, Western Edition.
      Such rate used for this calculation will be the rate in effect on the
      scheduled delivery date and reset every 90 days thereafter. Such Interest
      will be calculated on a simple interest basis and paid in full at actual
      delivery.

<PAGE>

Hawaiian Airlines, Inc.
6-1166-EMM-272   Page 2 of 3

3.    Right of Termination.

      Customer will not have the right to refuse to accept delivery of any
Aircraft because of a Non-Excusable Delay unless and until the aggregate
duration of the Non-Excusable Delay for such Aircraft exceeds ________
(Non-Excusable Delay Period). After such Non-Excusable Delay Period, either
party may terminate the Purchase Agreement as to such Aircraft by written or
telegraphic notice given to the other.

4.    Termination

      If the Purchase Agreement is terminated with respect to any Aircraft for a
Non-Excusable Delay, MDC will, in addition to paying Liquidated Damages as
described above, promptly repay to Customer the entire amount of the advance
payments received by MDC for such Aircraft, without interest.

5.    Exclusive Remedies

      The Liquidated Damages and Interest payable in accordance with Paragraphs
1 and 2 of this Letter Agreement, and Customer's right to terminate pursuant to
this Letter Agreement are Customer's exclusive remedies for a Non-Excusable
Delay and are in lieu of all other damages, claims, and remedies of Customer
arising at law or otherwise for any Non-Excusable Delay in the Aircraft
delivery. Customer hereby waives and renounces all other claims and remedies
arising at law or otherwise for any such Non-Excusable Delay.

6.    Confidential Treatment

      Customer understands that certain commercial and financial information
contained in this Letter Agreement are considered by MDC as confidential.
Customer agrees that it will treat this Letter Agreement and the information
contained herein as confidential and will not, without the prior written consent
of MDC, disclose this Letter Agreement or any information contained herein to
any other person or entity, except to the extent that such disclosure is
required by law or by any Government Entity (as such term is defined below),
provided that Customer gives reasonable notice to MDC so as to enable MDC to
seek appropriate protective orders or, if possible, challenge the requirement of
such disclosure. As used herein, "Government Entity" means (i)any national
government, political subdivision thereof, or local jurisdiction therein, (ii)
any instrumentality, board, commission, court, or agency of any of the above,
however constituted, and (iii) any association, organization, or institution of
which any of the above is a member or to whose jurisdiction any therof is
subject or in whose activities any of the above is a participant.

<PAGE>

Hawaiian Airlines, Inc.
6-1166-EMM-272   Page 3 of 3

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By  /S/
   --------------------------------
Its    Attorney-In-Fact
   --------------------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

HAWAIIAN AIRLINES, INC.

By   /S/
   --------------------------------
Its
   --------------------------------

By    /S/
   --------------------------------
Its
   --------------------------------

<PAGE>

6-1166-EMM-297

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:      Guarantee Agreement ("Guarantee") between The Boeing Company
              ("Guarantor") and Hawaiian Airlines, Inc. ("Beneficiary").

Reference:    Purchase Agreement No. 2252 (the Purchase Agreement) between
              McDonnell Douglas Corporation (MDC) and Hawaiian Airlines, Inc.
              (Customer) relating to Model 717-22A aircraft (the Aircraft)

Reference is made to Purchase Agreement No. 2252 dated as of December 31, 1999
(as amended and supplemented) (the "Purchase Agreement") between McDonnell
Douglas Corporation ("Obligor"), a wholly owned subsidiary of Guarantor, and
Beneficiary.

Guarantor guarantees to Beneficiary the due and punctual performance and
observance by Obligor of all the obligations and liabilities of Obligor under
the Purchase Agreement (the Obligations) according to the terms of the Purchase
Agreement, and in the event of nonpayment or performance, agrees to pay or
perform or cause such payment or performance to be made upon notice of such
nonpayment or nonperformance, in each case after any applicable notice
requirements. Guarantor shall not be liable to pay, perform or cause the
performance of any Obligation unless Beneficiary makes written demand upon
Obligor for the payment or performance of an Obligation then due and owing and
concurrently provides Guarantor with a copy of such written demand at the
address below, and such Obligation is not paid or performed in full within
twenty (20) days of such demand. Guarantor shall have a minimum period of thirty
(30) days to begin any performance or such longer period as Guarantor requires
to undertake such performance provided that all times during such period
Guarantor continues to use diligent efforts to complete such performance.

Guarantor waives any right to require that any right to take action against
Obligor (other than the written demand and twenty (20) day notice period for
performance

<PAGE>

Hawaiian Airlines, Inc.
Page 2 of 3

described above) be initiated or exhausted prior to action being taken against
Guarantor.

All notices to Boeing under this letter agreement shall be sent to

Boeing Commercial Airplane Group
P.O. Box 3707
Seattle, Washington  98124-2207

U.S.A.

Courier to:   Building 25-20
              1901 Oakesdale Ave. SW
              Renton, Wa.  98055 USA

Attention:    Vice President - Contracts
              Mail Code 21-34

Facsimile:    (425) 237-1706

Guarantor's obligations hereunder shall continue in full force and effect until
the complete and final performance of the Obligations.

This Guarantee may not be assigned without the written consent of Guarantor.

This Guarantee will be governed by the law of the State of Washington, exclusive
of Washington's conflicts of laws rules.

This Guarantee and any provision hereof may be waived, amended, modified or
supplemented as between Beneficiary and Guarantor only by an agreement or
instrument in writing executed by Guarantor and Beneficiary.

This Guarantee contains the entire agreement between the parties concerning the
subject matter hereof and supersedes all prior understandings or agreements,
whether written or oral.

CONFIDENTIAL TREATMENT. Customer understands that certain commercial and
financial information contained in this Letter Agreement are considered by
Boeing as confidential. Customer agrees that it will treat this Letter Agreement
and the information contained herein as confidential and will not, without the

<PAGE>

Hawaiian Airlines, Inc.
Page 3 of 3

prior written consent of Boeing, disclose this Letter Agreement or any
information contained herein to any other person or entity.

ACCEPTED AND AGREED TO this

Date: December 31, 1999

THE BOEING COMPANY

By  /S/
       --------------------------------

Its    Attorney-In-Fact
    -----------------------------------

Hawaiian Airlines, Inc.

By   /S/
   ----------------------------------

Its
    -----------------------------------

By    /S/
   ----------------------------------

Its
    -----------------------------------

<PAGE>

6-1166-EMM-299

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Other Matters

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to
            Model 717-22A aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. All terms
used but not defined in this Letter Agreement have the same meaning as in the
Purchase Agreement.

1.    Delivery Schedule.

      ------------------------------------------------------------

      The provisions of Letter Agreement 6-1166-EMM-0272 would not be applicable
in the event Customer requests a further delay in delivery beyond the revised
delivery date.

2.    Confidential Treatment

      Customer understands that certain commercial and financial information
contained in this Letter Agreement are considered by MDC as confidential.
Customer agrees that it will treat this Letter Agreement and the information
contained herein as confidential and will not, without the prior written consent
of MDC, disclose this Letter Agreement or any information contained herein to
any other person or entity, except to the extent that such disclosure is
required by law or by any Government Entity (as such term is defined below),
provided that Customer gives reasonable notice to MDC so as to enable MDC to
seek appropriate protective orders or, if possible, challenge the requirement of
such disclosure. As used herein, "Government Entity" means (i) any national
government, political subdivision thereof, or local jurisdiction therein, (ii)
any instrumentality, board, commission, court, or agency of any of the above,
however constituted, and (iii) any association, organization, or institution of
which any of the above is a member or to whose jurisdiction any therof is
subject or in whose activities any of the above is a participant.

<PAGE>

Hawaiian Airlines, Inc.
6-1166-EMM-299   Page 2 of 2

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By   /S/
   --------------------------------
Its           Attorney-In-Fact
   --------------------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

HAWAIIAN AIRLINES, INC.

By   /S/
   --------------------------------
Its
   --------------------------------

By    /S/
   --------------------------------
Its
   --------------------------------

<PAGE>

HAWAIIAN AIRLINES, INC.
6-1166-EMM-0300   Page 1

6-1166-EMM-0300

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Financing Matters

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to Model
            717-22A aircraft (the Aircraft)

      This Letter Agreement amends and supplements the Purchase Agreement. All
terms used but not defined in this Letter Agreement have the same meaning as in
the Purchase Agreement.

1.     _______________________.

_______________________________________________

_______________________________________________

If a definitive agreement on financing of the 717 aircraft has not been signed
by Boeing and Customer on or before January 15 21, 2000, either party will have
the right to terminate the purchase of the aircraft by written or telegraphic
notice given to the other within 10 days after such date. In the event the
parties have not reached agreement by January 15 21, but wish to continue
discussions, Boeing may, at it's option, slide the first two aircraft deliveries
(February and March 2001) into 2002, and in addition, reschedule other aircraft
deliveries as necessary.

2.     Effect of Termination

      If there is any termination under the above provisions or for any of the
following reasons: __________________________________________________, then all
rights and obligations of Boeing and Customer with respect to the Aircraft will
terminate and be without further force and effect, except that Boeing will
promptly refund to Customer, without interest, all applicable advance payments
and the Deposit received by Boeing from Customer pursuant to the Purchase
Agreement with respect to the Aircraft.

<PAGE>

HAWAIIAN AIRLINES, INC.
6-1166-EMM-0300   Page 2

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By   /S/
   --------------------------------
Its     Attorney-In-Fact
   --------------------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

HAWAIIAN AIRLINES, INC.

By   /S/
   --------------------------------
Its
   --------------------------------

By    /S/
   --------------------------------
Its
   --------------------------------

Attachment (2 pages)

<PAGE>

Attachment to:  6-1166-EMM-300

            Advance Payments Summary      BOEING PROPRIETARY

Redacted in its entirety.

<PAGE>

6-1166-EMM-0301

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Spares Commitment

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to Model
            717-22A aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. All terms
used but not defined in this Letter Agreement have the same meaning as in the
Purchase Agreement.

1.    Spares Commitment

Boeing contractually commits to our customers that we will manufacture, procure
and maintain inventory levels of Boeing proprietary spare parts in quantities
sufficient to meet our customer's needs. This commitment will continue as long
as the aircraft is being operated in air transport service.

Boeing has entered into Product Support Agreements with most of our suppliers
which require such suppliers to maintain levels of vendor spare parts inventory
sufficient to meet the repetitive demands of our customers. These product
support agreements will continue as long as five of the applicable model
aircraft are operated in commercial transport service anywhere in the world.

Currently, Boeing stocks vendor, Boeing proprietary and standards parts valued
at approximately $200 Million (almost 12,000 different part numbers) in our new
Torrance, California spares facility, located a short distance from Los Angeles
International airport.

Boeing is committed to the 717 Program, and we are confident we will produce
many of these aircraft. ______________________________________

     o      ______________________________________

     o      ______________________________________

     o      ______________________________________

<PAGE>

Hawaiian Airlines, Inc.
6-1166-EMM-0301 Page 2

2.    Confidential Treatment

Customer agrees not to disclose this Letter Agreement, attachments, or any other
information related to this Letter Agreement without prior written consent by
MDC, except to the extent that such disclosure is required by law or by any
Government Entity (as such term is defined below), provided that Customer gives
reasonable notice to MDC so as to enable MDC to seek appropriate protective
orders or, if possible, challenge the requirement of such disclosure. As used
herein, "Government Entity" means (i)any national government, political
subdivision thereof, or local jurisdiction therein, (ii) any instrumentality,
board, commission, court, or agency of any of the above, however constituted,
and (iii) any association, organization, or institution of which any of the
above is a member or to whose jurisdiction any therof is subject or in whose
activities any of the above is a participant.

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By   /S/
   --------------------------------
Its     Attorney-In-Fact
   --------------------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

HAWAIIAN AIRLINES, INC.

By   /S/
   --------------------------------
Its
   --------------------------------

By    /S/
   --------------------------------
Its
   --------------------------------

<PAGE>

6-1166-EMM-0322

Hawaiian Airlines, Inc.
Honolulu International Airport
P.O. Box 30008
Honolulu, HI  96820-0008

Subject:    Board Approval

Reference:  Purchase Agreement No. 2252 (the Purchase Agreement)
            between McDonnell Douglas Corporation (MDC) and
            Hawaiian Airlines, Inc. (Customer) relating to Model
            717-22A aircraft (the Aircraft)

      This Letter Agreement amends and supplements the Purchase Agreement. All
terms used but not defined in this Letter Agreement have the same meaning as in
the Purchase Agreement.

1.    Board Approval

Customer and MDC signed a definitive agreement for the purchase of the Aircraft
on December 31,1999, subject to a definitive agreement on the financing of the
Aircraft and Hawaiian Airlines Board of Directors approval of the transaction by
January 21, 2000. Customer has requested an extension to the board approval date
to February 25, 2000.

Customer has made deposits and advance payments in the amount of $_____________
as of February 1, 2000. __________________________

If board approval of the 717 aircraft purchase has not been granted on or before
February 25, 2000, either party will have the right to terminate the purchase of
the aircraft by written or telegraphic notice given to the other within 10 days
after such date. In the event Hawaiian Airlines Board of Directors approval has
not been granted by February 25, 2000, but the parties wish to continue
discussions, Boeing may, at it's option, reschedule the first two aircraft
deliveries (February and March 2001) into 2002, and in addition, reschedule
other aircraft deliveries as necessary.

<PAGE>

HAWAIIAN AIRLINES, INC.
6-1166-EMM-0322   Page 2

2.     Effect of Termination

      If there is any termination under the above provisions due to the failure
of the Board of Directors of Hawaiian Airlines to approve the Purchase Agreement
and the financing terms between Hawaiian Airlines and Boeing for the purchase of
up to 20 717-200 aircraft by February 25, 2000, then all rights and obligations
of Boeing and Customer with respect to the Aircraft will terminate and be
without further force and effect, except that Boeing will promptly refund to
Customer, without interest, all applicable advance payments and the Deposit
received by Boeing from Customer pursuant to the Purchase Agreement with respect
to the Aircraft.

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

Very truly yours,

MCDONNELL DOUGLAS CORPORATION
a wholly-owned subsidiary of
THE BOEING COMPANY

By   /S/
   --------------------------------
Its     Attorney-In-Fact
   --------------------------------

ACCEPTED AND AGREED TO this

Date:  December 31, 1999

HAWAIIAN AIRLINES, INC.

By   /S/
   --------------------------------
Its
   --------------------------------

By    /S/
   --------------------------------
Its
   --------------------------------

Attachment (2 pages)

<PAGE>

                           ATTACHMENTS

 REDACTED IN ITS ENTIRETY.

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