airworthiness · Rule · Final rule. · Published 2016-06-21 · Effective 2016-07-26 · 81 FR 40158
Document
Document number
2016-14406
Federal Register citation
81 FR 40158
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Turbomeca S.A. Turboshaft
Publication date
2016-06-21
Effective date
2016-07-26
FAA docket
Docket No. FAA-2010-0219
Abstract
We are superseding airworthiness directive (AD) 2010-11-10 for all Turbomeca S.A. Astazou XIV B and XIV H turboshaft engines. AD 2010- 11-10 requires inspection of certain third stage turbine wheels and removal of any damaged wheel. This AD requires expanding the population and frequency of repetitive inspections. This AD was prompted by a report of a third stage turbine wheel crack detected during engine overhaul. We are issuing this AD to prevent uncontained failure of the third stage turbine wheel, which could result in damage to the engine and damage to the helicopter.