airworthiness · Rule · Final rule; request for comments. · Published 2021-03-08 · Effective 2021-03-23 · 86 FR 13165
Document
Document number
2021-04800
Federal Register citation
86 FR 13165
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Airbus
Publication date
2021-03-08
Effective date
2021-03-23
FAA docket
Docket No. FAA-2021-0094
Abstract
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 attachment screws. This AD requires repetitive visual inspections of the right-hand side of the vertical fin spar for discrepancies (cracking), and corrective action if necessary, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.