AD 2022-20-07 Continues To Require Repetitively Inspecting The MGB Particle Detector...
The FAA is superseding Airworthiness Directive (AD) 2021-10-10 for all Airbus Helicopters Model SA330J helicopters. AD 2021-10-10 required repetitively inspecting the main gearbox (MGB) particle detector and the MGB bottom housing (oil sump) for metal particles, analyzing any metal particles that are found, and replacing the MGB if necessary. Since the FAA issued AD 2021-10-10, additional review concluded that installing an improved planet gear assembly is necessary.