Airworthiness Directives; Various Restricted Category Helicopters
airworthiness · Rule · Final rule; request for comments. · Published 2012-07-23 · Effective 2012-08-07 · 77 FR 42971
Document
Document number
2012-17279
Federal Register citation
77 FR 42971
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Various Restricted Category
Publication date
2012-07-23
Effective date
2012-08-07
FAA docket
Docket No. FAA-2012-0739
Abstract
We are adopting a new airworthiness directive (AD) for Arrow Falcon Exporters, Inc. (AFE), Rotorcraft Development Corporation (RDC), and San Joaquin Helicopters (SJH) Model OH-58A, OH-58A+, and OH-58C helicopters to require inspecting the main rotor mast (mast) for a crack. This AD is prompted by two reported failures of the mast from corrosion-initiated fatigue cracking. The actions specified by this AD are intended to prevent failure of the mast and subsequent loss of control of the helicopter.