routineRule

AD FAA-2026-0021

Airworthiness Directives; Leonardo S.p.a. Helicopters

Summary

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.

Directive Details

AD Number

FAA-2026-0021

Document Number

2026-02139

Type

Rule

Publication Date

February 3, 2026

Effective Date

February 18, 2026

Affected Manufacturer

Leonardo S.p.a.

Criticality

routine

Emergency

Docket ID

Docket No. FAA-2026-0021

Topics

Air transportationAircraftAviation safetyIncorporation by referenceSafety

Official Documents

View PDF View on Federal Register

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