Airworthiness Directive · Amendment 39-21596 · Flight control system
Airbus Helicopters Deutschland GmbH (AHD) Helicopters
This AD applies to Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-2 helicopters, certificated in any category, having an affected part as defined in European Union Aviation Safety Agency (EASA) AD 2019-0198, dated August 15, 2019 (EASA AD 2019-0198).
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 a short circuit in a yaw trim actuator connector that occurred during production electrical tests. This AD requires replacing certain wire harness trim connector backshells (backshells), 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 EASA AD 2019-0198.
(1) Where EASA AD 2019-0198 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where paragraph (1) of EASA AD 2019-0198 specifies to replace each affected part with a serviceable part within 9 months, this AD requires replacing each affected part with a serviceable part within 30 hours time-in-service after the effective date of this AD.
(3) Although the service information referenced in EASA AD 2019-0198 specifies to discard certain parts, this AD requires removing those parts from service.
(4) Where the service information referenced in EASA AD 2019-0198 specifies to use tooling, equivalent tooling may be used.
(5) Paragraph (2) of EASA AD 2019-0198 does not apply to this AD; this AD requires compliance with paragraph (i) of this AD.
(6) The “Remarks” section of EASA AD 2019-0198 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.
