airworthiness · Rule · Final rule. · Published 2016-06-17 · Effective 2016-07-22 · 81 FR 39545
Document
Document number
2016-14234
Federal Register citation
81 FR 39545
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Turbomeca S.A. Turboshaft
Publication date
2016-06-17
Effective date
2016-07-22
FAA docket
Docket No. FAA-2015-8257
Abstract
We are adopting a new airworthiness directive (AD) for all Turbomeca S.A. MAKILA 2A and MAKILA 2A1 turboshaft engines. This AD requires repetitive diffuser inspections and replacement of those diffusers that fail inspection. This AD was prompted by two occurrences of crack initiation on a ferrule of the diffuser. We are issuing this AD to prevent rupture of the ferrule of the diffuser, which could result in engine fire and damage to the helicopter.