Resumen
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.
Detalles de la directiva
Número de AD
FAA-2017-0817
Número de documento
2018-12830
Tipo
Rule
Fecha de publicación
June 15, 2018
Fecha de entrada en vigor
July 20, 2018
Fabricante afectado
Pratt & Whitney Division Turbofan
Criticidad
routine
Emergencia
No
Docket ID
Docket No. FAA-2017-0817
Temas
Documentos oficiales
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