Honeywell International Inc. 111 S. 34th Street Phoenix, Arizona 85034-2802 U.S.A. CAGE: 99193 Telephone: (800) 601-3099 (Toll Free U.S.A./Canada) Telephone: (602) 365-3099 (International Direct) Telephone: 00-800-601-30999 (EMEA Toll Free) Telephone: 420-234-625-500 (EMEA Direct)
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# SERVICE BULLETIN

ENGINE - HIGH PRESSURE COMPRESSOR SECTION - R emove Specific Second Stage High Pressure Compresso r (HPC2) Discs, PN 2-101-332-12 Legal Notice
NOTICE: This is a CATEGORY 1, SAFETY service bulletin. Export Control This document contains technical data and is subject to U.S. export regulations. These commodities, technology, or software were exported from the United States in accordance with the export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991, NLR Eligible. Proprietary Information Honeywell - Confidential THIS DOCUMENT AND ALL INFORMATION AND EXPRESSION CONTAINED HEREIN ARE THE PROPERTY OF HONEYWELL INTERNATIONAL INC., ARE PROVIDED IN CONFIDENCE, AND MAY BE USED BY PERSONS REQUIRED BY FEDERAL AVIAT ION REGULATION PART 21.50 TO COMPLY WITH ANY OF THE TERMS OF THESE INSTRUCTIONS. EXCEPT AS SET FORTH ABOVE, NO PERSON MAY, IN WHOLE OR IN PART, USE, DUPLICATE OR DISCLOSE THIS INFORMATION FOR ANY PURPOSE WITHOUT THE PRIOR WRITTEN PERMISSION OF HONEYWELL INTERNATIONAL INC. Honeywell Materials License Agreement The documents and information contained herein ("the Materials") are the proprietary data of Honeywell International Inc. and Honeywell Intellectual Properties Inc. (collectively "Honeywell"). These Materials are provided for the exclusive use of Honeywell Service Centers; Honeywell-authorized repair facilities; operators of Honeywell aerospace products subject to an applicable product support agreement, their wholly owned-subsidiaries or a formally designated third party service provider; and direct recipients of Materials from Honeywell’s Aerospace Technical Publication Distribution. The terms and conditions of this License Agreement govern your use of these Materials, except to the extent that any terms and conditions of another applicable agreement with Honeywell regarding the operation, maintenance, or repair of Honeywell aerospace products conflict with the terms and conditions of this License Agreement, in which case the terms and conditions of the other agreement will govern. However, this License Agreement will govern in the event of a conflict between its terms and conditions and those of a purchase order or acknowledgement.

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1. License Gra nt - If you are a party to an applicable product support agreement, a Honeywell Service Center agreement, or an authorized repair facility agreement, Honeywell hereby grants you a limited, non-exclusive license to use these Materials to operate, maintain, or repair Honeywell aerospace products only in accordance with that agreement. If you are a direct recipient of these Materials from Honeywell’s Aerospace Technical Publication Distribution and are not a party to an agreement related to the operation, maintenance or repair of Honeywell aerospace products, Honeywell hereby grants you a limited, non-exclusive license to use these Materials to maintain or repair the subject Honeywell aerospace products only at the facility to which these Materials have been shipped ("the Licensed Facility"). Transfer of the Materials to another facility owned by you is permitted only if the original Licensed Facility retains no copies of the Materials and you provide prior written notice to Honeywell. 2. Rights In Materials - Honeywell retains all rights in these Materials and in any copies thereof that are not expressly granted to you, including all rights in patents, copyrights, trademarks, and trade secrets. No license to use any Honeywell trademarks or patents is granted under this License Agreement. 3. Confidentiality - You acknowledge that these Materials contain information that is confidential and proprietary to Honeywell. You agree to take all reasonable efforts to maintain the confidentiality of these Materials. 4. Assignment And Transfer - This License Agreement may be assigned to a formally designated service designee or transferred to a subsequent owner or operator of an aircraft containing the subject Honeywell aerospace products. However, the recipient of any s uch assignment or transfer must assume all of your obligations under this License Agreement. No assignment or transfer shall relieve any party of any obligation that such party then has hereunder. 5. Copies of Material s - Unless you have the express written permission of Honeywell, you may not make or permit making of copies of the Materials. Notwithstanding the foregoing, you may make copies of only portions of the Material for your internal use. You agree to return the Materials and any copies thereof to Honeywell upon the request of H oneywell. 6. Term - This License Agreement is effective until terminated as set forth herein. This License Agreement will terminate immediately, without notice from Honeywell, if you fail to comply with any provision of this License Agreement or will terminate simultaneously with the termination or expiration of your applicable product support agreement, authorized repair facility agreement, or your formal designation as a third party service provider. Upon termination of this License Ag reement, you will return these Materials to Honeywell without retaining any copies and will have one of your authorized officers certify that all Materials have been returned with no copies retained. 7. Remedies - Honeywell reserves the right to pursue all available remedies and damages resulting from a breach of this License Agreement. 8. Limitation of Liability - Honeywell does not make any representation regarding the use or sufficiency of the Materials. THERE ARE NO OTHER WARRANTIES, WHETHER WRITTEN OR ORAL, EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, (i) WARRANTIES ARISING FROM COURSE OF PERFORMANCE, DEALING, USAGE, OR TRADE, WHICH ARE HEREBY EXPRESSLY DISCLAIMED, OR (ii) WARRANTIES AGAINST INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OF THIRD PARTIES, EVEN IF HONEYWELL HAS BEEN ADVISED OF ANY SUCH INFRINGEMENT. IN NO EVENT WILL HONEYWELL BE LIABLE FOR ANY INCIDENTAL DAMAGES, CONSEQUENTIAL DAMAGES, SPECIAL DAMAGES, INDIRECT DAMAGES, LOSS OF PROFITS, LOSS OF REVENUES, OR LOSS OF USE, EVEN IF INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. TO THE EXTENT PERMITTED BY APPLICABLE LAW, THESE LIMITATIONS AND EXCLUSIONS WILL APPLY REGARDLESS OF WHETHER LIABILITY ARISES FROM BREACH OF CONTRACT, WARRANTY, TORT (INCLUDING BUT NOT LIMITED TO NEGLIGENCE), BY OPERATION OF LAW, OR OTHERWISE. 9. Controlling Law - This License shall be governed and construed in accordance with the laws of the State of New York without regard to the conflicts of laws provisions thereof. This license sets forth the entire agreement

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between you an d Honeywell and may only be modified by a writing duly executed by the duly authorized representatives of the parties. Safety Advisory WARNING: BEFO RE THE MATERIALS CALLED OUT IN THIS PUBLICATION ARE USED, KNOW THE HANDLING, STORAGE AND DISPOSAL PRECAUTIONS RECOMMENDED BY THE MANUFACTURER OR SUPPLIER. FAILURE TO OBEY THE MANUFACTURERS’ OR SUPPLIERS’ RECOMMENDATIONS CAN RESULT IN PER SONAL INJURY OR DISEASE. This publication describes physical and chemical processes which can make it necessary to use chemicals, solvents, pa ints, and other commercially available materials. The user of this publication must get the Material Safety Data Sheets (OSHA Form 174 or equivalent) from the manufacturers or suppliers of the materials to be used. The user must know the manufacturer/supplie r data and obey the procedures, recommendations, warnings an d cautions set forth for the safe use, handling, storage, and disposal of the materials. Warranty/L iability Advisory WARNING: HONEYWELL ASSUMES NO RESPONSI BILITY FOR ANY HONEYWELL EQUIPMENT WHICH IS NOT MAINTAINED AND/OR REPAIRED IN ACCORDANCE WITH HONEYWELL’S PUBLISHED INSTRUCTIONS AND/OR HONEYWELL’S FAA/SFA R 36 REPAIR AUTHORIZATION. NEITHER DOES HONEYWELL ASSUME RESPONSIBILITY FOR SPECI AL TOOLS AND TEST EQUIPMENT FABRICATED BY COMPANIE S OTHER THAN HONEYWELL. WARNING: INCORRECTLY REPAIRED COMPONENTS CAN AFFECT AIRWORTHINESS OR DECREASE THE LIFE OF T HE COMPONENTS. INCORRECTLY FABRICATED SPECIAL TOOLING OR TEST EQUIPMENT CAN RESULT IN DAMAGE TO THE PRODUCT COMPONENTS OR GIVE UNSATISFACTORY RESULTS. 

## Copyright - Notice Copyright 2011 Honeywell International Inc. All rights reserved. Honeywell is a registered trademark of Honeywell International Inc. All other marks are owned by their respective companies.

THIS IS THE SB FOSI - DATE: 20101101

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Transmittal I nformation ATA Number ALF/LF-72-1113 (Publication Number D201107000017) Summary This is the INI TIAL release. Revision History This service b ulletin has had no revision(s) as shown in Table 1. Table 1. Revis ion History Revision Number Revision Date 0 16 Sep 2011

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1. P l a n n i n g I n fo r m at i o n A. Effectivity (1) This is a CATEGORY 1, SAFETY service bulletin. (2) This service bulletin is applicable to the serial numbers listed in Table 2 for the HPC2 disc, PN 2-101-332-12. The engine serial number where each HPC2 disc, PN 2-101-332-12, was last known to be installed is also listed in Table 2. Table 2. Applicable Component(s) HPC2 Disc Serial Number Engine Serial Number 09-162246-02801 7436 09-162246-02802 7671 09-162246-02803 7856 09-162246-02805 7499 09-162246-02810 7421 09-162246-02811 7258 09-162246-02812 7712 09-162246-02814 7753 09-162246-02815 5665AC 09-162246-02816 5185C 09-162246-02818 7817 09-162246-02819 7937 09-162246-02820 7711 09-162246-02822 7735 09-162246-02823 7717 09-162246-02824 7733 09-162246-02827 7519 09-162246-02828 7318 09-162246-02832 7801 09-162246-02833 7810 09-162246-02834 7736 09-162246-02839 7433 09-162246-02840 5713 09-162246-02841 5846 09-162246-02842 7388 09-162246-02844 7487

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Table 2. Applicable Component(s) (Cont) HPC2 Disc Serial Number Engine Serial Number 09-162246-02845 7593 09-162246-02846 7529 09-16224 6-02847 7338 (3) The component(s) shown in Table 2 are used on turbofan aircraft engines. This service bulletin is applicable to the serial numbers shown in Table 3. Table 3. Applicable Engine(s)

PN Model Number Serial Number 1 Application 2-003-050-07 ALF502L-2C Challenger 600 2-003-040-03 ALF502R-3 BAe 146 2-003-040-05 ALF502R-3A BAe 146 2-003-040-16 ALF502R-3A 2 BAe 146 2-003-040-17 ALF502R-5 2 BAe 146 2-003-040-18 ALF502R-5 2 BAe 146 2-003-040-04 ALF502R-5 BAe 146 2-003-040-10 ALF502R-5 3 BAe 146 2-003-040-13 ALF502R-5 4 BAe 146 2-003-040-19 ALF502R-5 2 BAe 146 2-003-040-15 LF507-1F AVRO RJ 2-003-040-14 LF507-1H BAe 146 NOTES: 1. All field engines affected. 2. Engines Post Service Bulletin ALF/LF 72-1020, Engine Model ALF502R-3A-102A, ALF502R-5-102A, -103A, -104A. 3. Engines Post Service Bulletin ALF502R 72-153, Engine Model ALF502R-5 Serial Number Suffix “A”. 4. Engines Post Service Bulletin ALF502R 72-280, Engine Model ALF502R-5 Serial Number Suffix “B”. B. Concurrent Requirements (1) Review of the service bulletin(s) listed in Table 4 should be accomplished by the operator for possible incorporation at the time this service bulletin is accomplished.

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Table 4. Optional Service Bulletin(s) Service Bulletin Number Service Bulletin Title ALF502 72-0002 Time Limits - Component Service Life Limits LF507-1F 72-2 ENGINE - Time Limits - Component Service Life Limits LF507-1H 72-2 ENGINE - Time Limits - Component Service Life Limits
W

A R N I N G : FAILURE TO COMPLY WITH THIS SERVICE BULLETIN COULD RESULT IN DISTRESS TO THE HPC2 DISC, PN 2-101-332-12. IF LEFT UNCORRECTED, THIS DISTRESS COULD RESULT IN AN UNCONTAINED SEPARATION AND RELEASE OF HIGH ENERGY FRAGMENTS, AND COULD CAUSE SERIOUS INJURY OR DEATH TO PERSONNEL, AND DAMAGE TO, OR LOSS OF THE AIRCRAFT. C. Reason (1) Problem: Cracks were found in a low-time T55 HPC2 disc (common to all ALF502/LF507 engines), PN 2-101-332-12, during routine inspection. This service bulletin gives instructions to remove suspect HPC2 discs, PN 2-101-332-12, which were produced from the same material ingot. (2) Background: The cracks that were found in a low-time HPC2 disc, PN 2-101-332-12, were determined to have initiated during the manufacturing process. The serial numbers of the suspect HPC2 discs, PN 2-101-332-12, have been identified and the last known engine in which they were installed has also been identified. (3) Benefits: Removal of the identified serial number HPC2 discs, PN 2-101-332-12, from operation as specified in this service bulletin will eliminate the possibility of a crack in HPC2 discs, PN 2-101-332-12, propagating to failure. (4) Action: Review engine records and remove the identified serial number HPC2 discs, PN 2-101-332-12, from operation and return the removed HPC2 discs, PN 2-101-332-12, to Honeywell. D. Description (1) This service bulletin requires the removal of specific HPC2 discs, PN 2-101-332-12, from operation before they have accumulated 4,500 cycles, or before 7 years from the release date of this service bulletin, whichever comes first. E. Compliance (1) Compliance addresses a safety issue. (2) The warranty/program data is listed in Table 5. N OT E : The procedures outlined in this service bulletin may be accomplished at the Service Center level or greater.

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Table 5. Warranty/Program Data Warranty/Program Yes No EMCPP X Warranty/Spe cial Program 1 X NOTE: 1. A special program will be offered by Honeywell. Contact your Honeywell representative for details. (3) Honeywell recommends that the HPC2 discs, PN 2-101-332-12, identified by serial number in Table 2 be removed from service at access, or not to exceed 4,500 cycles of operation since new, or 7 years from the release date of this service bulletin. F. Approval (1) The accomplishment instructions are FAA approved. G. Manpower (1) An estimated 0.5 manhour(s) is/are required to accomplish this change after access to equipment/part(s) is obtained. H. Weight and Balance (1) None. I. Electrical Load Data (1) Not changed. J. Software Accomplishment Summary (1) Not applicable. K. References (1) The sources of information used in the preparation of this service bulletin include Honeywell engineering documentation and the documents listed in Table 6. N OT E : If the revision of a document is identified, subsequent revisions are permitted unless specified differently. Table 6. Sources of Information

Model Number Type Manual Reference/Report Number Affected Chap/Sec/Subj ALF502L-2C Illustrated Parts Catalog 72-07-05 72-34-00 ALF502L-2C Maintenance Manual 72-07-06 72-34-00 ALF502L-2C Overhaul Manual 72-07-07 NA ALF502R Aircraft Maintenance 146.03 72-33-02 ALF502R Engine 286.1 72-01-07 ALF502R Illustrated Parts Catalog 72-07-01 72-01-00 LF507-1F Aircraft Maintenance 146.102 72-33-02

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Table 6. Sources of Information (Cont)

Model Number Type Manual Reference/Report Number Affected Chap/Sec/Subj LF507-1F Engine 507F.1 72-00-33 LF507-1F Illustrated Parts Catalog 507F.3 72-33-00 LF507-1H Aircraft Maintenance 146.97 72-33-02 LF507-1H Engine 507H.1 72-00-33 LF507-1 H Illustrated Parts Catalog 507H.3 72-33-0 0

— Standard Practices Manual 286.2
—
(2) The service bulletin(s) listed in Table 7 is/are applicable to this service bulletin. Table 7. Service Bulletin References Service Bulletin Number Service Bulletin Title ALF/LF 72-1020 ENGINE - CONVERSION - Introduction of Improved Fan Core Inlet Anti-Ice System Engine Configurations ALF502R 72-153 ENGINE - PIPING AND ACCESSORIES - Int roduction of Improved Harnesses and Accessories ALF502R 72-280 ENGINE - COMPRESSOR HOUSING - Introduction of Improved Steel Compressor Housing
L. Other Publications Affected (1) Same as those listed under Paragraph 1.K.(1). M. Interchangeability or Intermixability of Parts (1) Not applicable.

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2. M ate r i a l I n fo r m at i o n A. Material - Price and Availability (1) Information regarding price and availability of parts may be obtained from Honeywell, Global Custom er Care Center, Telephone: (800) 601-3099 (Toll Free U.S.A./Canada), (602) 365-309 9 (International Direct), 00-800-601-30999 (EMEA Toll Free), 420-234-625 -500 (EMEA Direct). B. Industry Supp ort Information (1) Not applicable. C. Material Necessary for Each Engine (1) Not applicable. D. Material Necessary for Each Spare (1) Not applicabl e. E. Reidentified Parts (1) Not applicable. F. Tooling - Price and Availability (1) No special tooling is required except that already listed in publications referenced in Paragraph 1.K.(1).

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3. Acc o m p l i s h m e n t I n st r u ct i o n s A. General Information N OT E : Publications listed in Paragraph 1.K.(1) provide applicable disassembly, cleaning, inspection, reassembly, and testing instructions and shall be referred to during the accomplishment of the following instructions. B. Remove and Replace the HPC2 Disc, PN 2-101-332-12 N OT E : To obtain satisfactory results, procedures in this publication must be accomplished in accordance with accepted industry maintenance practices and prevailing government regulations. Honeywell is not responsible for the quality of work performed in complying with this publication unless Honeywell performs such work. Such responsibility rests with the entity performing the work and the owner or operator. (1) Check the engine records for a suspect serial number HPC2 disc, PN 2-101-332-12, listed in Table 2. (2) If a suspect serial number HPC2 disc, PN 2-101-332-12, is not found, no further action is required. (3) If a suspect serial number HPC2 disc, PN 2-101-332-12, is found, refer to the component record card in the engine logbook and proceed as follows: (a) If the HPC2 disc serial number is listed in Table 2, disassemble the engine as necessary to access the rotor assembly and physically examine the HPC2 disc, PN 2-101-332-12, to verify the serical number. Refer to the instructions in the applicable engine manual (EM). (b) Return the affected HPC2 disc(s), PN 2-101-332-12, to Honeywell at: Honeywell International, Inc. Greer AMSC 85 Beeco Rd. Greer, SC, U.S.A 29650 (c) Reassemble the engine as necessary. Refer to the instructions in the applicable EM. (d) Make an entry in the engine log book noting date of compliance, engine operating time, part number(s) and serial number(s) of installed component(s) (as applicable), and compliance with this service bulletin (and service bulletin revision number, if applicable). (4) Check and ensure proper engine operation in accordance with the Aircraft Flight Manual and/or appropriate aircraft documents. (5) Complete the Compliance Certificate form in Paragraph 4.A. and send to Honeywell.

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4. A p pe n d i x A. Appendix A, Certificate of Compliance To: Operator or Service Center Performing Modification Upon modification of equipment, please fill in the information requested below, then mail or fax the completed Certificate of Compliance (refer to Figure 1) to: Honeywell International Inc. 111 S 34th Street, Mail Stop 503-320 Phoenix, AZ 85034-2802 Fax: (602) 231-3014

Figure 1. (Sheet 1 of 1) Certificate of Compliance

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FAX TO U.S.A. (602) 231-3014

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