Superseded. This AD was superseded by AD 2025-08-06. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2021-09-14
Effective 06/22/2021 · Published 05/18/2021
Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France) Helicopters
Summary
The FAA is superseding Airworthiness Directive (AD) 2010-16- 51, which applied to certain Eurocopter France (now Airbus Helicopters (Airbus)) Model SA330J helicopters. AD 2010-16-51 required inspecting for a gap between the main gearbox (MGB) oil cooling fan assembly (fan) rotor blade and the upper section of the guide vane bearing housing and depending on the results, replacing the two fan rotor shaft bearings with…