AD 2021-16-06
Effective 09/27/2021 · Published 08/23/2021
Airworthiness Directives; Leonardo S.p.a. Helicopters
Summary
The FAA is superseding Airworthiness Directive (AD) 2020-19-11 for certain Leonardo S.p.a. Model A119 and AW119 MKII helicopters. AD 2020-19-11 required repetitive borescope inspections of the 90-degree tail rotor gearbox (TGB) and depending on the inspection results, removing the TGB from service. This AD was prompted by the determination that additional parts may be susceptible to the unsafe condition. This AD ret…