airworthiness · Rule · Final rule. · Published 2021-07-23 · Effective 2021-08-27 · 86 FR 38914
Document
Document number
2021-15481
Federal Register citation
86 FR 38914
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Leonardo S.p.a.
Publication date
2021-07-23
Effective date
2021-08-27
FAA docket
Docket No. FAA-2021-0375
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AB139 and AW139 helicopters. This AD was prompted by two events of uncommanded emergency flotation system (EFS) deployment during flight. This AD requires replacing certain part- numbered EFS control panels and prohibits installing them. The FAA is issuing this AD to address the unsafe condition on these products.