Summary
We are adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (type certificate previously held by Schweizer Aircraft Corporation) (Sikorsky) Model 269D and Model 269D Configuration A helicopters. This AD requires reducing the life limit of the ring gear carrier assembly. This AD was prompted by cracks in the ring gear carrier assembly. The actions are intended to reduce the life of the ring gear carrier assembly to prevent failure of the main rotor transmission, loss of engine power to the main rotor, and subsequent loss of control of the helicopter.
Directive Details
AD Number
FAA-2014-1020
Document Number
2015-13846
Type
Rule
Publication Date
June 9, 2015
Effective Date
July 14, 2015
Affected Manufacturer
Sikorsky Aircraft Corporation (Type Certificate Previously Held by Schweizer Aircraft Corporation)
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2014-1020
Topics
Official Documents
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