airworthiness · Rule · Final rule. · Published 2016-05-04 · Effective 2016-06-08 · 81 FR 26675
Document
Document number
2016-10279
Federal Register citation
81 FR 26675
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Turbomeca S.A. Turboshaft
Publication date
2016-05-04
Effective date
2016-06-08
FAA docket
Docket No. FAA-2015-7490
Abstract
We are adopting a new airworthiness directive (AD) for certain Turbomeca S.A. Astazou XIV B and H turboshaft engines. This AD requires a one-time inspection of the front surface of the 3rd stage turbine for a groove. This AD was prompted by a report of a crack on the 3rd stage turbine wheel. We are issuing this AD to prevent cracks in the 3rd stage turbine wheel, failure of the engine, in-flight shutdown, and loss of control of the helicopter.