# BAE Systems Inspection Service Bulletin ISB.32-176: No revision named - Rights: © BAE Systems. Filed by the FAA in regulations.gov docket FAA-2011-0569; AD 2011-20-02 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [BAE Systems Inspection Service Bulletin ISB.32-176](https://openairdocs.org/service-documents/bae-systems/isb32-176.md) - Title as filed: U.S. DOT/FAA-2011- Service Bulletin ISB.32-176 - Pages: 12 - PDF: https://openairdocs.org/files/sha256/d1/86/d186d44ff18149eee22c5392c75fa9fd2860e2349a9420f887f71cc04fb4ac9b - Page: https://openairdocs.org/service-documents/bae-systems/isb32-176/file/d186d44ff181 ## Text This text is OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 1 (OCR) BAE SYSTEMS (Operations) Limited 2BW, Strott International Airport, Ayrshire, INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT TITLE: LANDING GEAR - MLG - INSPECTION OF THE SHOCK ABSORBER LOWER ATTACHMENT PIN. 1.Planning information A.Effectivity (1) Aircraft Aircraft affected by this inspection are defined below :- AlL BAe 146 100, 200, 300 Series ALL AVRO 146-RJ70, RJ85, RJ100 Series Check the aircraft technical records for accomplishment of this inspection before actioning this Inspection Service Bulletin. B. Reason Degradation of the chromium plating on the outer diameter of the shock absorber lower attachment pin has occurred in service. Excessive corrosion of the unprotected steel could lead to pin fracture. C.Description The main Landing gear (MLG) shock absorber is removed and Lower attachment pin is inspected for corrosion. Work comprises:- -Jack aircraft. -Remove the MLG shock absorber. -Do Messier Dowty Ltd. Service Bulletin 146-32-157. -Install a serviceable MLG shock absorber. -Test. -Close up. -Remove aircraft jacks. D. Compliance The technical content of this service bulletin is the subject of EASA AIRWORTHINESS DIRECTIVE consultation. Initial inspection to be accomplished within 4000 landings or 2 years, whichever is the sooner from the initial issue date of this inspection service bulletin. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 1 of 12 Printed in England ### Page 2 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT Repeat inspections to be accomplished every 8000 landings or 4 years, whichever is the sooner after the initial inspection. Accomplish this inspection service bulletin at each overhaul of the MLG unit. E .ApprovaL The technical information contained in this document has been approved under the authority of EASA Part 21 Approval No. EASA.21J.047. F .Manpower (1) 3 man-hours per aircraft (install/remove aircraft jacks and test). (2) Refer to Messier-Dowty Ltd. Service Bulletin 146-32-157 for the man-hours to inspect the MLG shock absorber lower pin. G.Materials - cost and availability Refer to Messier-Dowty Ltd. Service Bulletin 146-32-157. H.Tooling - cost and availability Refer to Messier-Dowty Ltd. Service Bulletin 146-32-157. I.Weight and balance No Effect. J.References Aircraft Maintenance Manual AMM 07-00-00, AMM Chapter 32-10-14 and AMM Chapter 32-30-00, page block 501. Refer to Messier-Dowty Ltd. Service Bulletin 146-32-157 at Latest issue. K.Publications affected Refer to Messier-Dowty Ltd. Service Bulletin 146-32-157. NOTE: The Maintenance Review Board Report and Maintenance Planning Document will be reviewed, for a possible inclusion of a scheduled task. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 2 of 12 Printed in England ### Page 3 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT L.Electrical load data Not applicable. M.Software Accomplishment Summary Not applicable. N.Aircraft Noise Levels Not applicable. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 3 of 12 Printed in England ### Page 4 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT This Page Is Intentionally Left Blank. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 4 of 12 Printed in England ### Page 5 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT 2. Accomplishment instructions A.GeneraL WARNING: WHENEVER ANY PART OF THE MAIN OR ASSOCIATED SYSTEM IS DISMANTLED, ADJUSTED, REPAIRED OR RENEWED, THAT PART OF THE SYSTEM WHICH HAS BEEN DISTURBED SHALL BE SUBJECTED TO A SECOND INDEPENDANT INSPECTION FOR SECURITY OF LOCKING DEVICES, FULL AND FREE MOVEMENT, DIRECTION AND TENSION CHECKS. THIS WORK MUST BE DONE IN ACCORDANCE WITH THE ACCEPTABLE MEANS OF COMPLIANCE M.A. 402 (a) TO EASA PART M, OR TO AN EQUIVALENT NATIONAL STANDARD. (1) The following abbreviations are used within this document :- AMM - Aircraft Maintenance Manual (2) Observe alL WARNINGS and CAUTIONS appearing in the Aircraft Maintenance Manual (AMM) referred to in this Service Bulletin. B .Preparation (1) Refer to AMM 07-00-00. Jack the aircraft. C. Inspection (1) Refer to AMM Chapter 32-10-14. Remove the MLG shock absorber. (2) Do Messier Dowty Ltd. SB 146-32-157. (3) Refer to AMM Chapter 32-10-14. Install a serviceable MLG shock absorber lower attachment pin. (4) Refer to AMM Chapter 32-10-14. Install a serviceable MLG shock absorber. D. Test (1) Refer to AMM Chapter 32-30-00, page block 501. Do an operational test of the landing gear. Perform a minimum of 5 extension/retention cycles. E. Close up (1) Make certain work area is clean, and clear of tools and miscellaneous equipment. (2) Refer to AMM 07-00-00. Remove aircraft jacks. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 5 of 12 Printed in England ### Page 6 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT F.Documentation (1) Complete a copy of Inspection Report attached to this Inspection Service Bulletin and return by fax or mail. OR Return all required Inspection Report details via e-mail. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 6 of 12 Printed in England ### Page 7 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT 3.Material information Refer to Messier Dowty Ltd. SB 146-32-157. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 7 of 12 Printed in England ### Page 8 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT This Page Is Intentionally Left Blank. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 8 of 12 Printed in England ### Page 9 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT APPENDIX 1 1.INSPECTION REPORT A.Complete and return this form as detailed OPERATOR: AIRCRAFT REGISTRATION: FLIGHT HOURS: LANDINGS: DATE INSPECTION PERFORMED: FINDINGS: To: Customer Liaison, Customer Support (Building 37), BAE SYSTEMS (Operations) Limited, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland. Fax + 44 (0) 1292 675432 e-mail raengliaison@baesystems.com Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 9 of 12 Printed in England ### Page 10 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT This Page Is Intentionally Left Blank. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 10 of 12 Printed in England ### Page 11 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT APPENDIX 2 1.CONTINUED AIRWORTHINESS INSTRUCTIONS (1) There are no continued airworthiness instructions applicable to this inspection service bulletin. A.Scheduled Maintenance (1) Not applicable. B.Removal Procedures (1) Not applicable. C.Installation Procedures (1) Not applicable. D.Test Procedures (1) Not applicable. E.Troubleshooting (1) Not applicable. Date: 12-NOV-2009 ISB.32-176 Revision: Initial issue Page 11 of 12 Printed in England ### Page 12 (OCR) BAE SYSTEMS INSPECTION SERVICE BULLETIN BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT This Page Is Intentionally Left Blank. Date: 12-NOV-2009 ISB. 32-176 Revision: Initial issue Page 12 of 12 Printed in England --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.