Airworthiness directives › 2016-12-13
AD 2016-12-13 Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France) Helicopters
Applicability*9
This AD supersedes AD 2000-05-17, Amendment 39-11627 (65 FR 13875, March 15, 2000) and AD 2001-04-12, Amendment 39-12131 (66 FR 13232, March 5, 2001).
Compliance
(1) For helicopters with a serial number up to and including 1169, not modified with an improvement of the engine mount in accordance with Eurocopter Service Bulletin (SB) No. 71-003, Revision 1, dated July 18, 2002 (SB 71-003), or not modified by installing a spring-type engine suspension system in accordance with Eurocopter SB No. 71-005, Revision 0, dated May 14, 2004 (SB 71-005), before further flight: (i) Remove from service the following engine mount parts: (A) Support arm, P/N C714A1107201; (B) Swaged support arm, P/N C714A1106201; (C) Left-hand support bracket, P/N C714A1101102; and (D) Right-hand support bracket, P/N C714A1101103. (ii) Measure the height of the engine mounting base as depicted in Figure 1 of Eurocopter Alert SB No. 04A005, Revision 0, dated July 16, 2003. If the height is more than 10.5 millimeters, replace the engine mount with an engine mount that does not have the parts identified in paragraph (f)(1)(i) of this AD. (2) For helicopters with a serial number 1170 and larger or helicopters modified with an improvement of the engine mount in accordance with SB 71-003: (i) Within 25 hours TIS, replace the spring-type engine suspension system and perform a dye-penetrant inspection of the flared coupling for a crack by following the Accomplishment Instructions, paragraphs 2.B.2.a through 2.B.2.c of SB 71-005. (ii) If there is a crack in the flared coupling, before further flight, replace the coupling with an airworthy coupling. (3) For helicopters with coupling tube, P/N C631A1002101, installed, before further flight, remove coupling tube, P/N C631A1002101, from service. Do not install coupling tube, P/N C631A1002101, on any helicopter.
Required actions
Special flight permits may be issued provided there are no cracks in the coupling tube attachment fitting.
Unsafe condition
You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
Affected ADs
This AD defines the unsafe condition as a crack in a coupling tube. This condition could result in coupling tube failure, loss of engine drive, and a subsequent forced landing of the helicopter.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1