Airworthiness Directives; Honeywell International Inc. LTS101 Series Turboshaft Engines and LTP101 Series Turboprop Engines
airworthiness · Rule · Final rule. · Published 2011-04-12 · Effective 2011-05-17 · 76 FR 20231
Document
Document number
2011-8470
Federal Register citation
76 FR 20231
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Honeywell International Inc. LTS101 Series Turboshaft
Publication date
2011-04-12
Effective date
2011-05-17
FAA docket
Docket No. FAA-2009-1185
Abstract
We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires removing certain power turbine rotors from service using a specific drawdown schedule. This AD was prompted by reports of fatigue cracks in the airfoil of the power turbine blades. We are issuing this AD to prevent fracture of the power turbine blade airfoil, which could result in sudden loss of engine power and prevent continued safe flight or safe landing.