AD 2022-14-03
Effective 07/28/2022 · Published 07/13/2022
Airworthiness Directives; Leonardo S.p.a. Helicopters
Summary
The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB412 and AB412 EP helicopters. This AD was prompted by reports of cracked tailboom attachment bolts and barrel nuts. This AD requires replacing the upper left hand (LH) tailboom attachment bolt, visually inspecting the other three tailboom attachment bolts and all barrel nuts, repetitive torque checks of the tailboom attachment bol…