Summary
We are adopting a new airworthiness directive (AD) for certain Turbomeca S.A. Arriel 1E2 turboshaft engines. This AD requires removing the tachometer box on affected engines. This AD was prompted by reports of uncommanded in-flight shutdowns (IFSDs). We are issuing this AD to prevent failure of the tachometer box, which could lead to failure of the engine, IFSD, and loss of control of the helicopter.
Directive Details
AD Number
FAA-2015-4070
Document Number
2016-04028
Type
Rule
Publication Date
February 26, 2016
Effective Date
April 1, 2016
Affected Manufacturer
Turbomeca S.A. Turboshaft
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2015-4070
Topics
Official Documents
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