Summary
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, EC130B4, and EC130T2 helicopters. This AD was prompted by reports of an incorrectly installed engine flange on the main gear box (MGB) engine coupling. This AD requires inspecting the MGB engine coupling for correct installation and, depending on the results, corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2026-4638
Document Number
2026-16047
Type
Rule
Publication Date
August 6, 2026
Effective Date
September 10, 2026
Affected Manufacturer
Airbus
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2026-4638
Topics
Official Documents
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