AD 2021-17-10
Effective 09/07/2021 · Published 08/20/2021
Airworthiness Directives; Leonardo S.p.a Helicopters
Summary
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model A109A, A109A II, A109C, A109E, A109K2, A109S, and AW109SP helicopters, having a certain rotor brake kit installed. This AD was prompted by a report of un-commanded activation of the rotor brake system before take-off due to a jammed rotor brake control cable and subsequent partially open brake control valve. This AD requires rep…