Airworthiness Directive · Amendment 39-23139 · Battery/charger system
Airbus Helicopters Deutschland GmbH Helicopters
This AD applies to Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-3 helicopters, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2022-0208, dated October 11, 2022 (EASA AD 2022-0208).
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-3 helicopters. This AD is prompted by reports of momentary direct current (DC) power interruption in flight of both essential busses. This AD requires revising the existing rotorcraft flight manual (RFM) to incorporate an emergency and malfunction procedure. 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, EASA AD 2022-0208. The owner/operator (pilot) holding at least a private pilot certificate may revise the existing rotorcraft flight manual (RFM) for the helicopter and must enter compliance with this paragraph of the AD into the helicopter maintenance records in accordance with 14 CFR 43.9(a) and 91.417(a)(2)(v). The record must be maintained as required by 14 CFR 91.417, 121.380, or 135.439.
(1) Where paragraph (1) of EASA AD 2022-0208 specifies to inform all flight crews and operate the helicopter accordingly, this AD does not require those actions as those actions are already required by existing FAA operating regulations (see 14 CFR 91.505 and 14 CFR 135.21).
(2) Where paragraph (2) of EASA AD 2022-0208 specifies “the RFM emergency and malfunction procedure, is an acceptable method” this AD requires replacing that text with “the RFM emergency and malfunction procedure, as defined in this AD, is an acceptable method”.
(3) This AD does not adopt the “Remarks” section of EASA AD 2022-0208.
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.
