Superseded. This AD was superseded by AD 2021-20-16. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2021-04-15
Effective 03/23/2021 · Published 03/08/2021
Airworthiness Directives; Airbus Helicopters
Summary
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, AS355N and AS355NP helicopters; and certain Model AS350B3 helicopters. This AD was prompted by a report that, during an unscheduled post-flight inspection of the tail cone area, a crack was found in the spar of the upper part of the vertical fin and fractures were found in the two front attachmen…