Resumo
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.
Detalhes da diretiva
Número da AD
FAA-2018-0826
Número do documento
2019-02453
Tipo
Rule
Data de publicação
February 15, 2019
Data de vigência
March 22, 2019
Fabricante afetado
Pratt & Whitney Division (PW) Turbofan
Criticidade
important
Emergência
Não
Docket ID
Docket No. FAA-2018-0826
Tópicos
Documentos oficiais
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