Resumo
We are revising airworthiness directive (AD) 2014-17-08 for all Pratt & Whitney Canada Corp. (P&WC) PT6A-114 and PT6A-114A turboprop engines. AD 2014-17-08 required initial and repetitive borescope inspections (BSIs) of compressor turbine (CT) blades, and the removal from service of blades that fail inspection. This new AD adds an additional single crystal CT blade, reduces the affected population, and corrects the Credit for Previous Action paragraph. This AD was prompted by P&WC development of an additional single crystal CT blade that corrects the unsafe condition. We are issuing this AD to prevent failure of CT blades, which could result in damage to the engine and damage to the airplane.
Detalhes da diretiva
Número da AD
FAA-2013-0766
Número do documento
2015-10075
Tipo
Rule
Data de publicação
May 1, 2015
Data de vigência
June 5, 2015
Fabricante afetado
Pratt & Whitney Canada Corp. Turboprop
Criticidade
important
Emergência
Não
Docket ID
Docket No. FAA-2013-0766
Tópicos
Documentos oficiais
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