SERVICE BULLETIN ENGINE - COMPRESSOR SECTION - Install Improved Annular Ball (Tower Shaft) Bearing, PN 3033024-2, -4 or -6

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The user must know the manufacturer/supplier data and obey the procedures, recommendations, warnings and cautions set forth for the safe use, handling, storage, and disposal of the materials. Warranty/Liability Advisory WARNING: HONEYWELL ASSUMES NO RESPONSIBILITY FOR ANY HONEYWELL EQUIPMENT WHICH IS NOT MAINTAINED AND/OR REPAIRED IN ACCORDANCE WITH HONEYWELL'S PUBLISHED INSTRUCTIONS AND/OR HONEYWELL'S FAA/SFAR 36 REPAIR AUTHORIZATION. NEITHER DOES HONEYWELL ASSUME RESPONSIBILITY FOR SPECIAL TOOLS AND TEST EQUIPMENT FABRICATED BY COMPANIES OTHER THAN HONEYWELL. WARNING: INCORRECTLY REPAIRED COMPONENTS CAN AFFECT AIRWORTHINESS OR DECREASE THE LIFE OF THE COMPONENTS. INCORRECTLY FABRICATED SPECIAL TOOLING OR TEST EQUIPMENT CAN RESULT IN DAMAGE TO THE PRODUCT COMPONENTS OR GIVE UNSATISFACTORY RESULTS. Copyright - Notice Copyright 2011, 2018 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: 20170130 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 4 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 Transmittal Information ATA Number AS907-72-9045 (Publication Number D201102000045) Summary This revision is a FULL replacement. This revision includes the changes that follow: • Added annular ball (tower shaft) bearing, PN 3033024-6. • Changed Table 2 to add engine models AS907-2-1A, AS907-2-1S and AS907-3-1E and bearing note. • Added Table 3 in Concurrent Requirements. • Changed Step (1) to add PN 3033024-6 in Paragraph 1.C. • Changed Description section to add PN 3033024-6 in Paragraph 1.D. • Added information regarding steel rivet implementation in Paragraph 1.D. • Updated Table 4 to the current table format and added SPGM 18. • Added Footnote 1 and 2 to Table 4. • Added references for engine models AS907-2-1A, AS907-2-1S and AS907-3-1E. to Paragraph 1.K. • Added -A01 to all Task sections for AS907-1-1A and AS907-2-1G. • Added engine models AS907-2-1A, AS907-2-1S and AS907-3-1E in Table 5. • Changed Table 6 to add PN 3033024-6 and added footnote 2. • Changed Step 3.B thru 3.B.(5) to add PN 3033024-6 and all engine models. • Changed Step 3.B.(2) thru 3.B.(5) to distinguish between Task sections for AS907-1-1A, AS907-2-1A, AS907-2-1G, AS907-2-1S and AS907-3-1E. • Added Acronyms and Abbreviations. • Changed the content and format to agree with Honeywell processes in effect at the time of the release of this revision. The information that is identified with revision bars is listed in the Revision History section. Revision bars are not used before Paragraph 1.A. The editorial changes and information that was moved or reformatted is not identified with revision bars. Refer to Paragraph 4.A. for a list of the acronyms and abbreviations used in this service bulletin. Revision History This service bulletin has had two revision(s) as shown in Table 1. Table 1. Revision History Revision Number Revision Date 0 18 Apr 2011 1 19 Jul 2012 2 6 Sep 2018 Highlights This section issues Revision 2 to Service Bulletin, ATA Number AS907-72-9045 (Publication Number D201102000045), and contains these changes: The list of highlights tells the users about the changes that the revision makes. The list has three columns. The "Page" column shows the block of data that the revision changes and the page on which the block begins. 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 5 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 The block can be a section, subsection, graphic, table, etc. Revision marks give the location of the change in the block. The "Description" column tells the user about the change or changes in each block. A paragraph, table, or figure reference often comes before the description. The "Effectivity" column tells the user about the part number(s) to which the block of information applies. The default value for this column is "All." "All" means that the block applies to all parts. Page Description Effectivity 7 Paragraph 1.A.(2). Changed Table 2 to add engine models AS907-2-1A, AS907-2-1S and AS907-3-1E and bearing note. All 7 Paragraph 1.B. Added Table 3 to Concurrent Requirements. All 7 Paragraph 1.C. Changed Step (1) to add PN 3033024-6. All 7 Paragraph 1.D. Changed Description section to add PN 3033024-6. All 7 Paragraph 1.D. Added information regarding steel rivet implementation. All 8 Paragraph 1.E. Updated Table 4 to the current table format and added SPGM 18. All 8 Paragraph 1.E. Added Footnote 1 and 2 to Table 4. All 9 Paragraph 1.K. Added references for engine models AS907-2-1A, AS907-2-1S and AS907-3-1E. All 9 Paragraph 1.K. Added -A01 to all Task sections for AS907-1-1A and AS907-2-1G. All 9 Paragraph 1.K.(1). Added engine models AS907-2-1A, AS907-2-1S and AS907-3-1E in Table 5. All 11 Paragraph 2.C.(1). Changed Table 6 to add PN 3033024-6 and added footnote 2. All 13 Paragraph 3.B. Changed Step 3.B thru 3.B.(5) to add PN 3033024-6 and all engine models. All 13 Paragraph 3.B. Changed Step 3.B.(2) thru 3.B.(5) to distinguish between Task sections for AS907-1-1A, AS907-2-1A, AS907-2-1G, AS907-2-1S and AS907-3-1E. All 14 Paragraph 4.A. Added Acronyms and Abbreviations. All 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 6 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 1. Planning Information A. Effectivity (1) This is a CATEGORY 2, RELIABILITY service bulletin. (2) This service bulletin is applicable to the turbofan aircraft engines shown in Table 2. Table 2. Applicable Engine(s) PN Model Number Applicable to Serial Numbers Application 3030001-4 AS907-1-1A ALL Bombardier BD-100-1A10, Challenger 300 70040702-1 AS907-2-1A Prior to 136556 1 Bombardier BD-100-1A10, Challenger 350 3033002-1 3033002-2 AS907-2-1G Prior to 130389 1 Gulfstream G280 70041011-1 AS907-2-1S Prior to 144121 1 Textron Aviation Model 700 Cessna Citation Longitude 70040119-1 AS907-3-1E Prior to 131309 1 EMB-545 (Embraer Legacy 450) EMB-545 (Embraer Legacy 500) NOTE: 1. Engine SN indicates when the PN 3033024-4 bearings with stainless steel rivets were introduced into new engine production beginning with bearing SN 17-16225-20524. B. Concurrent Requirements (1) Incorporation of the service bulletin(s) listed in Table 3 is recommended at the time this service bulletin is accomplished. Table 3. Recommended Service Bulletin(s) Service Bulletin Number Service Bulletin Title AS907-72-9080 ENGINE - TURBINE SECTION - Install Improved No. 4 Roller Bearing, PN 3035647-7, on AS907 Model Engines C. Reason (1) Honeywell has developed annular ball (tower shaft) bearings, PN 3033024-2, -4 and -6 which provide enhanced bearing life. D. Description (1) Annular ball (tower shaft) bearings PN 3033024-2, -4 and -6 utilize stainless steel rivets to secure the two bronze cage halves. Use of stainless steel rivets contributes to enhanced bearing life as the stainless steel rivets provide a 60X increase in fatigue strength. • PN 3033024-2: Stainless steel rivets are used to secure the two cage halves 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 7 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 • PN 3033024-4: Beginning with bearing SN 17-16225-20524, stainless steel rivets were incorporated to secure the two cage halves. Fielded engines which had a tower shaft bearing replacement after November 1, 2017, received 3033024-4 bearings which utilized stainless steel rivets. • PN 3033024-6: The -6 is a reidentification of the aforementioned -4 bearing with stainless steel rivets. (2) Annular ball (tower shaft) bearing, PN 3033024-2, -4 (SN 17-162255-20524 and subsequent) or -6 should be installed when the tower shaft upper bevel gear housing assembly is removed from the engine. E. Compliance (1) Compliance addresses a substantial improvement to reliability, or non-conforming hardware. (2) The warranty/program data is listed in Table 4. NOTE: The procedures outlined in this service bulletin may be accomplished at the Minor Maintenance level or greater. Table 4. Warranty/Program Data Warranty/Program Yes 1 2 No In Warranty OEM Warranty (Standard new engine warranty) X Spare Part Warranty (Standard new spare part warranty) X Special Program Number (SPGM) 18 (Programs in which special pricing and/or special conditions may apply) X Special Pricing Notice (SPN) Number (Reduction from catalog list pricing, i.e., “P” condition pricing may apply) X Out of Warranty Special Program Number (SPGM) 18 (Programs in which special pricing and/or special conditions may apply) X Warranty/Program Yes 1 2 No Special Pricing Notice (SPN) Number (Reduction from catalog list pricing, i.e., “P” condition pricing may apply) X MSP X NOTES: 1. The costs of compliance with this service bulletin may be covered by Warranty, MSP, or other Programs marked with an “X” in the “Yes” column, subject to the terms and conditions of the applicable Warranty, MSP, or other Program contracts. This service bulletin in no way alters, modifies, or extends the terms of any Warranty, MSP, or other Programs contract. For clarification or questions, contact Honeywell Warranty Department at 800-601-3099, International and select Option No. 2. 2. Send claims through the Honeywell MyAerospace web portal (www.myaerospace.com). Select the Maintenance Plans tab and use the Claims-Maintenance Programs sub-option. 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 8 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 (3) Honeywell recommends that this service bulletin be accomplished at first access to the affected parts. Access is defined as when the tower shaft upper bevel gear housing assembly is removed from the engine. F. Approval (1) The accomplishment instructions are FAA approved. G. Manpower (1) An additional 2.0 man-hour(s) is/are required to accomplish this change after the tower shaft upper bevel gear housing assembly is removed from the engine. H. Weight and Balance (1) No change. 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 5. Table 5. Sources of Information Part/Model Number Heavy Maintenance Manual 1 Light Maintenance Manual 1 Illustrated Parts Catalog 1 AS907-1-1A 72-05-13 72-05-12 72-05-11 AS907-2-1A 72-05-23 72-05-22 72-05-21 AS907-2-1G 72-05-17 72-05-16 72-05-15 AS907-2-1S 72-05-26 72-05-25 72-05-24 AS907-3-1E 72-05-20 72-05-19 72-05-18 NOTE: 1. Affected Chapter/Section/Subject 72-30-01. (2) (AS907-1-1A) Refer to the following tasks in engine light maintenance manual (LMM) 72-05-12: • Task 72-30-01-020-801-A01, Removal • Task 72-30-01-030-801-A01, Disassembly • Task 72-30-01-430-801-A01, Assembly • Task 72-30-01-420-801-A01, Installation. (3) (AS907-2-1A) Refer to the following tasks in engine LMM 72-05-22: • Task 72-30-01-020-801-A01, Removal • Task 72-30-01-030-801-A01, Disassembly 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 9 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 • Task 72-30-01-430-801-A01, Assembly • Task 72-30-01-420-801-A01, Installation. (4) (AS907-2-1G) Refer to the following tasks in engine LMM 72-05-16: • Task 72-30-01-020-801-A01, Removal • Task 72-30-01-030-801-A01, Disassembly • Task 72-30-01-430-801-A01, Assembly • Task 72-30-01-420-801-A01, Installation. (5) (AS907-2-1S) Refer to the following tasks in engine LMM 72-05-25: • Task 72-30-01-020-801-A01, Removal • Task 72-30-01-030-801-A01, Disassembly • Task 72-30-01-430-801-A01, Assembly • Task 72-30-01-420-801-A01, Installation. (6) (AS907-3-1E) Refer to the following tasks in engine LMM 72-05-19: • Task 72-30-01-99C-801-A01, Removal • Task 72-30-01-99C-803-A01, Disassembly • Task 72-30-01-99C-806-A01, Assembly • Task 72-30-01-99C-802-A01, Installation. L. Other Publications Affected (1) Same as those listed under Paragraph 1.K.(1). M. Interchangeability or Intermixability of Parts (1) Not applicable. 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 10 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 2. Material Information A. Material - Price and Availability (1) Information regarding price and availability of parts may be obtained from Honeywell, Global Customer Care Center, Telephone: 800-601-3099 (Toll Free U.S.A./Canada), 602-365-3099 (International Direct), 00-800-601-30999 (EMEA Toll Free), 420-234-625-500 (EMEA Direct). (2) Refer to Paragraph 2.C. for information regarding price of parts required to accomplish this service bulletin. B. Industry Support Information (1) Not applicable. C. Material Necessary for Each Engine (1) The parts required to accomplish the instructions outlined in this service bulletin are shown in Table 6. Refer to Table 7 for the Instructions/Disposition Codes. NOTE: Applicable illustrated parts catalogs and spare parts bulletins, dated later than the original issue date of this service bulletin, may introduce different parts for installation. Refer to these documents before ordering parts. NOTE: Expendable parts, discarded in gaining access to the affected area of the equipment, are not included. NOTE: The inclusion of vendor names/addresses and part numbers in the following parts listing shall not be construed as an authorization of the vendor, pursuant to FAA regulations, to ship directly to the user. Neither shall it be construed as a certification by Honeywell that parts shipped by vendors directly to users will conform to the type design or that such parts are airworthy or safe for installation. Table 6. Operator-Purchased Material New PN Keyword/ Nomenclature Old PN Qty Unit Price 1 Instructions/ Disposition Codes 3033024-2, 3033024-4 2 or 3033024-6 Annular ball (tower shaft) bearing 3033024-3, 3033024-4 prior to bearing SN 17-162255-20524 1 K, S NOTES: 1. Refer to Paragraph 2.A. for information regarding price and availability of parts. 2. PN 3033024-4 beginning with bearing SN 17-162255-20524. Table 7. Instructions/Disposition Codes Code Description Disposition Code K Old and new parts are interchangeable. Disposition Code S Send the old part to Honeywell International Inc., Material Receiving, 1944 E. Sky Harbor Circle, Phoenix, AZ 85034-3440. 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 11 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 D. Material Necessary for Each Spare (1) The same as given in Paragraph 2.C. 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). 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 12 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 3. Accomplishment Instructions A. General Information NOTE: 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. Install Improved Annular Ball (Tower Shaft) Bearing, PN 3033024-2, -4 or -6 NOTE: PN 3033024-4 beginning with bearing SN 17-162255-20524. (1) Annular ball (tower shaft) bearing, PN 3033024-2, -4 (serial number 17-162255-20524 and subsequent) or -6 should be installed when the tower shaft upper bevel gear housing assembly is removed from the engine. (2) Remove the tower shaft upper bevel gear housing assembly. • For AS907-1-1A, AS907-2-1A, AS907-2-1G, and AS907-2-1S, refer to the applicable engine LMM, Task 72-30-01-020-801-A01, Removal. • For AS907-3-1E, refer to the applicable engine LMM, Task 72-30-01-99C-801-A01, Removal. (3) Disassemble the tower shaft upper bevel gear housing assembly. • For AS907-1-1A, AS907-2-1A, AS907-2-1G, and AS907-2-1S, refer to the applicable engine LMM, Task 72-30-01-030-801-A01, Disassembly. • For AS907-3-1E, refer to the applicable engine LMM, Task 72-30-01-99C-803-A01, Disassembly. (4) Using annular ball (tower shaft) bearing PN 3033024-2, -4 or -6, reassemble the tower shaft upper bevel gear housing assembly. • For AS907-1-1A, AS907-2-1A, AS907-2-1G, and AS907-2-1S, refer to the applicable engine LMM, Task 72-30-01-430-801-A01, Assembly. • For AS907-3-1E, refer to the applicable engine LMM, Task 72-30-01-99C-806-A01, Assembly. (5) Install the tower shaft upper bevel gear housing assembly. • For AS907-1-1A, AS907-2-1A, AS907-2-1G, and AS907-2-1S, refer to the applicable engine LMM, Task 72-30-01-420-801-A01, Installation. • For AS907-3-1E, refer to the applicable engine LMM, Task 72-30-01-99C-802-A01, Installation. (6) Upon completion of engine reassembly, check and ensure proper engine operation in accordance with the engine test instructions. (7) 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). (8) Reidentification of equipment is not required. (9) Complete the Certificate of Compliance form in Paragraph 4.B. and send it to Honeywell. 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 13 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 4. Appendix A. Appendix A, Acronyms and Abbreviations (1) Refer to Table 8 for a list of the acronyms and abbreviations used in this service bulletin. Table 8. List of Acronyms and Abbreviations Term Full Term ATA Air Transport Association CAGE commercial and government entity ECCN Export Control Classification Number FAA Federal Aviation Administration LMM light maintenance manual No. number OSHA Occupational Safety and Health Administration PMA Parts Manufacturer Approval PN part number Qty quantity SFAR Special Federal Aviation Regulation SN serial number 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 14 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 B. Appendix B, 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 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 15 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell. SERVICE BULLETIN AS907 FAX TO U.S.A. 602-231-3014 18 Apr 2011 AS907-72-9045 Revision 2, 6 Sep 2018 Page 16 Publication Number D201102000045 © Honeywell International Inc. Do not copy without express permission of Honeywell.