airworthiness · Rule · Final rule. · Published 2021-10-18 · Effective 2021-11-22 · 86 FR 57567
Document
Document number
2021-22470
Federal Register citation
86 FR 57567
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Leonardo S.p.a.
Publication date
2021-10-18
Effective date
2021-11-22
FAA docket
Docket No. FAA-2021-0608
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AB139, AW139, AB412, and AB412 EP helicopters. This AD was prompted by failure of an Emergency Flotation System (EFS) float compartment to inflate during maintenance of the EFS. This AD requires inspecting certain EFSs and depending on the results, marking certain parts or removing certain parts from service, 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.