Summary
We are adopting a new airworthiness directive (AD) for Agusta S.p.A. Model AB139 and Model AW139 helicopters. This AD requires inspecting the thickness of the tail gearbox (TGB) central housing (housing). This AD was prompted by reports that the housing thickness does not conform to its type design. The actions of this AD are intended to detect and correct an unsafe condition on these products.
Directive Details
AD Number
FAA-2017-0103
Document Number
2018-03929
Type
Rule
Publication Date
March 1, 2018
Effective Date
April 5, 2018
Affected Manufacturer
Agusta S.p.A.
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2017-0103
Topics
Official Documents
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