Summary
The FAA is adopting a new airworthiness directive (AD) for certain Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters. This AD was prompted by fatigue analysis indicating stress concentrations, as well as the discovery of a helicopter with a crack in the station (STA) 362 frame and skin. This AD requires inspecting the main transmission forward and aft frame assemblies and adjacent skins for a crack and loose fasteners, and establishing life limits for certain frame assemblies. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2016-8501
Document Number
2019-15757
Type
Rule
Publication Date
July 25, 2019
Effective Date
August 29, 2019
Affected Manufacturer
Sikorsky Aircraft Corporation
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2016-8501
Topics
Official Documents
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