Airworthiness Directive · Amendment 39-21595 · Miscellaneous wiring
Airbus Helicopters Deutschland GmbH (AHD) Helicopters
This AD applies to all Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-2 helicopters, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-2 helicopters. This AD was prompted by reports of chafing marks on the wiring harness behind the middle side panels in the area of the front passenger (PAX) panels. This AD requires inspecting, modifying, and rerouting the wiring harness, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2019-0305, dated December 17, 2019 (EASA AD 2019-0305).
(1) Where EASA AD 2019-0305 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where EASA AD 2019-0305 refers to flight hours (FH), this AD requires using hours time-in-service (TIS).
(3) Where paragraph (6) of EASA AD 2019-0305 specifies a compliance time for the initial inspection of within 400 flight hours after the modification of an affected part and thereafter at intervals not exceeding 400 flight hours, plus a non-cumulative tolerance of 40 flight hours, this AD requires a compliance time of within 440 hours TIS after the modification of an affected part for the initial inspection and thereafter at intervals not exceeding 440 hours TIS.
(4) Where paragraph (6) of EASA AD specifies repetitive inspections in accordance with paragraph 3.B.8. of the referenced Alert Service Bulletin (ASB), this AD requires repetitive inspections in accordance with paragraph 3.B.9. of ASB MBB-BK117 D-2-88A-003, Revision 1 and dated December 9, 2019.
(5) Where the service information referenced in EASA AD 2019-0305 specifies to use tooling, equivalent tooling may be used.
(6) The “Remarks” section of EASA AD 2019-0305 does not apply to this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
