airworthiness · Rule · Final rule; request for comments. · Published 2026-02-03 · Effective 2026-02-18 · 91 FR 4843
Document
Document number
2026-02139
Federal Register citation
91 FR 4843
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Leonardo S.p.a.
Publication date
2026-02-03
Effective date
2026-02-18
FAA docket
Docket No. FAA-2026-0021
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.a. Model AB412 and AB412 EP helicopters. This AD was prompted by reports of a cracked main gearbox (MGB) support case. This AD requires revising the existing rotorcraft flight manual (RFM) for the helicopter. The FAA is issuing this AD to address the unsafe condition on these products.