Airworthiness Directive · Amendment 39-21444 · Main rotor gearbox
Airbus Helicopters
This AD applies to all Airbus Helicopters Model SA330J helicopters, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model SA330J helicopters. This AD was prompted by report of failure of a second stage planet gear of the main gear box (MGB). This AD requires replacement of the MGB particle detector assembly with an improved, elongated MGB particle detector assembly, 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 2019-0108, dated May 17, 2019 (EASA AD 2019-0108).
(1) Where EASA AD 2019-0108 refers to its effective date, this AD requires using the effective date of this AD.
(2) The “Remarks” section of EASA AD 2019-0108 does not apply to this AD.
(3) Where EASA AD 2019-0108 refers to flight hours (FH), this AD requires using hours time-in-service.
(4) Although the service information referenced in EASA 2019-0108 specifies to discard certain parts, this AD does not include that requirement.
