airworthiness · Rule · Final rule; request for comments. · Published 2021-09-03 · Effective 2021-09-20 · 86 FR 49470
Document
Document number
2021-19032
Federal Register citation
86 FR 49470
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Leonardo S.p.a.
Publication date
2021-09-03
Effective date
2021-09-20
FAA docket
Docket No. FAA-2021-0718
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AB412 and AB412 EP helicopters. This AD was prompted by the results of a fatigue review. This AD requires establishing a life limit for certain part-numbered high landing gear aft crosstubes. The FAA is issuing this AD to address the unsafe condition on these products.