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631-32-225 Landing Gear & Systems Integration Division CAGE: F0189 Inovel Parc Sud - 7, rue Général Valérie André 78140 - Velizy-Villacoublay - France Tel: +33 (0) 1 46 29 81 00 - Fax: +33 (0) 1 46 29 85 31 www.safranmbd.com
SERVICE LETTER TRANSMITTAL SHEET
September 10, 2014 (Rev.1) Service Letter N° 631-32-225
Page 1 of 1
Please find enclosed revision No.1 to Service Letter 631-32-225. ATR 42 AND 72 MAIN LANDING GEAR PINS INSPECTION AND REPLACEMENT
REASONS:
Adding instruction in chapter "REASON".
ISSUE DATES : Composition :
Original issue: August 22, 2014 Pages: None
Revision No. 1: september 10, 2014 Pages: 1
631-32-225
SERVICE LETTER
August 22, 2014 Service Letter N° 631-32-225
September 10, 2014 (Rev.1) Page 1 of 4
TO : All Operators and Agreed Repair Centers
EFFECTIVITY:
In-service aircraft affected: ATR 42 and ATR 72 all types.
SUBJECT:
Main Landing Gear hinge pins inspection and replacement in the frame of the EASA Airworthiness Directive No. 2014-0074 dated 21 March 2014.
REASON:
EASA Airworthiness Directive No. 2014-0074 was issued on March 21st, 2014 requesting the inspection and replacement if needed of the Main Landing Gear (MLG) hinge pins as listed within Messier-Bugatti-Dowty’s (MBD) latest approved revision of Service Bulletins ref. 631-32-213/ 214/ 215/ 216 Rev. 1/ 219/ 220.
The compliance times of this Airworthiness Directive are as follows:
- One year (i.e. before April 4th, 2015) for pins part number (P/N) D61000 only fitted on ATR 72 (refer to Appendix 1),
- Not later than the next overhaul or 9 years or 20 000 flight cycles which ever comes first for all ATR 72 pins other than P/N D61000 (refer to Appendix 1) and all ATR 42 hinge pins (refer to Appendix 2).
Given the short compliance time for the inspection of pins P/N D61000 and as to ensure operations continuity by optimizing the pins retrofit policy, the purpose of this Service Letter is to get a cartography (see bullets below) of all pins affected by the Airworthiness Directive No. 2014-0074 by the end of September 2014.
Therefore MBD kindly requests Operators impacted by the above referenced Airworthiness Directive to provide by September 2014 the following information:
- Quantity of pins concerned by the Airworthiness Directive, - Part number and serial number of affected pins, - Aircraft serial number and MLG leg/side brace part number and serial number on which affected pins
are fitted, - For pins listed in the latest approved revision of Service Bulletins ref. 631-32-213/ 214/ 215, entity
which performed the inspection as per the Airworthiness Directives No. 96-096-029(B) and 96-131-064(B).
631-32-225
SERVICE LETTER
August 22, 2014 Service Letter N° 631-32-225
Page 2 of 4
The requested information, available through the Main Landing Gears documentation including maintenance records, shall be provided to MBD’s and ATR’s Customer Support as follows:
- MBD’s focal point emails: o [email protected] for Europe, Africa and Middle East o [email protected] for Asia o [email protected] for Americas
- ATR’s focal point: o [email protected]
MBD’s latest approved revision of Service Bulletins ref. 631-32-213/ 214/ 215/ 216 Rev. 1/219 and 220 are available on MBD’s web portal: https://landingpad.safranmbd.com/lp/.
631-32-225
SERVICE LETTER
August 22, 2014 Service Letter N° 631-32-225
Page 3 of 4
APPENDIX A
ATR 72 PINS
Hinge Pin Part
Number Applicable Service Bulletin
D61000 Latest approved revision of SB ref. 631-32-213 or 631-32-216 Rev. 1 D60955
Latest approved revision of SB ref. 631-32-214 or 631-32-219 D60968 D60999 D61032 D61061
D60999 D61000
D61061
D60955
D61032 D60968
631-32-225
SERVICE LETTER
August 22, 2014 Service Letter N° 631-32-225
Page 4 of 4
APPENDIX B
ATR 42 PINS
Hinge Pin Part Number
Effectivity Applicable Service Bulletin
ATR 42-300 ATR 42-500
D56800 or D56800-1
X
Latest approved revision of SB 631-32-215 or 631-32-220
D56809 X D56841 X D57261 X D57401 X D57407 X D58807 X D62054 X X D62055 X X D62079 X D63823 X X D63825 X X
* D57401
** D62055
* D56800 or * D56800-1
* D57261
* D56809 and * D62079
* PINS ATR 42-300 ** PINS ATR 42 ALL TYPE
