airworthiness · Rule · Final rule. · Published 2021-09-08 · Effective 2021-10-13 · 86 FR 50219
Document
Document number
2021-19243
Federal Register citation
86 FR 50219
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Leonardo S.p.a.
Publication date
2021-09-08
Effective date
2021-10-13
FAA docket
Docket No. FAA-2021-0463
Abstract
The FAA is adopting a new airworthiness directive (AD) for Leonardo S.p.a. Model AB139 and AW139 helicopters with certain main rotor blades installed. This AD was prompted by a report of an in- flight loss of a main rotor blade (MRB) tip cap. This AD requires inspecting the MRB tip cap for disbonding. The FAA is issuing this AD to address the unsafe condition on these products.