Resumen
We are adopting a new airworthiness directive (AD) for certain Pratt & Whitney Division (PW) PW4074, PW4074D, PW4077, PW4077D, PW4084D, PW4090, and PW4090-3 turbofan engines. This AD was prompted by an in-flight failure of a 1st-stage low-pressure compressor (LPC) blade. This AD requires initial and repetitive thermal acoustic imaging (TAI) inspections for cracks in certain 1st-stage LPC blades and removal of those blades that fail inspection. We are issuing this AD to address the unsafe condition on these products.
Detalles de la directiva
Número de AD
FAA-2018-0826
Número de documento
2019-02453
Tipo
Rule
Fecha de publicación
February 15, 2019
Fecha de entrada en vigor
March 22, 2019
Fabricante afectado
Pratt & Whitney Division (PW) Turbofan
Criticidad
important
Emergencia
No
Docket ID
Docket No. FAA-2018-0826
Temas
Documentos oficiales
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