airworthiness · Rule · Final rule; request for comments. · Published 2022-07-13 · Effective 2022-07-28 · 87 FR 41581
Document
Document number
2022-14817
Federal Register citation
87 FR 41581
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Leonardo S.p.a.
Publication date
2022-07-13
Effective date
2022-07-28
FAA docket
Docket No. FAA-2022-0806
Abstract
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 bolts, 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.