Resumo
We are adopting a new airworthiness directive (AD) for all Pratt & Whitney Division (PW) PW4052, PW4056, PW4060, PW4062, PW4062A, PW4152, PW4156A, PW4158, PW4460, and PW4462 turbofan engine models, including engines identified with suffixes -1C, -1E, -3, -3A, or -3B. This AD was prompted by the discovery of multiple cracked 4th stage low-pressure turbine (LPT) air seals in the fleet. This AD requires removal from service of certain 4th stage LPT air seals. We are issuing this AD to address the unsafe condition on these products.
Detalhes da diretiva
Número da AD
FAA-2017-0817
Número do documento
2018-12830
Tipo
Rule
Data de publicação
June 15, 2018
Data de vigência
July 20, 2018
Fabricante afetado
Pratt & Whitney Division Turbofan
Criticidade
routine
Emergência
Não
Docket ID
Docket No. FAA-2017-0817
Tópicos
Documentos oficiais
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