Resumo
We are adopting a new airworthiness directive (AD) for all Pratt & Whitney Division (PW) PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 turbofan engines. This AD was prompted by an uncontained failure of a high-pressure turbine (HPT) hub during takeoff. This AD requires an inspection to measure the surface condition of the aft side web/rim fillet of HPT 1st stage hubs and removal from service of hubs that fail inspection. We are issuing this AD to correct the unsafe condition on these products.
Detalhes da diretiva
Número da AD
FAA-2016-8836
Número do documento
2017-04627
Tipo
Rule
Data de publicação
March 9, 2017
Data de vigência
April 13, 2017
Fabricante afetado
Pratt & Whitney Division Turbofan
Criticidade
important
Emergência
Não
Docket ID
Docket No. FAA-2016-8836
Tópicos
Documentos oficiais
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