airworthiness · Rule · Final rule. · Published 2021-08-20 · Effective 2021-09-24 · 86 FR 46761
Document
Document number
2021-17841
Federal Register citation
86 FR 46761
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Leonardo S.p.a.
Publication date
2021-08-20
Effective date
2021-09-24
FAA docket
Docket No. FAA-2021-0455
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AW189 helicopters. This AD was prompted by fatigue testing and analyses. This AD requires establishing a life limit for a certain part-numbered tail gearbox fitting. The FAA is issuing this AD to address the unsafe condition on these products.