airworthiness · Rule · Final rule. · Published 2020-07-30 · Effective 2020-09-03 · 85 FR 45773
Document
Document number
2020-16408
Federal Register citation
85 FR 45773
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Leonardo S.p.A.
Publication date
2020-07-30
Effective date
2020-09-03
FAA docket
Docket No. FAA-2020-0215
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.A. (Leonardo) Model AB139, AW139, AW169, and AW189 helicopters. This AD was prompted by reports of uncommanded deployment of the emergency flotation system (EFS) due to improper accomplishment of the reset procedure of the shape memory alloy (SMA) inflation system actuation device. This AD requires removal of affected SMA inflation systems and installation of serviceable SMA inflation systems. The FAA is issuing this AD to address the unsafe condition on these products.