Summary
We are adopting a new airworthiness directive (AD) for all Turbomeca S.A. Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 turboshaft engines. This AD requires performing a high gas generator speed (NG) rating vibration check. This AD was prompted by several reports of uncommanded in-flight shutdown on Arriel 1 engines. We are issuing this AD to prevent an uncommanded in- flight shutdown of the engine, which could result in an emergency landing.
Directive Details
AD Number
FAA-2012-0901
Document Number
2013-00130
Type
Rule
Publication Date
January 10, 2013
Effective Date
February 14, 2013
Affected Manufacturer
Turbomeca S.A. Turboshaft
Criticality
critical
Emergency
Yes
Docket ID
Docket No. FAA-2012-0901
Topics
Official Documents
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