Resumo
The FAA proposes to adopt a new airworthiness directive (AD) for all CFM International, S.A. (CFM) CFM56-5B and CFM56-7B model turbofan engines with a certain high-pressure turbine (HPT) inner stationary seal installed. This proposed AD was prompted by cracks found in the rotating air HPT front seal. This proposed AD would require removal, inspection, and replacement of the affected HPT inner stationary seal, and depending on the findings, removal and replacement of the rotating air HPT front seal. The FAA is proposing this AD to address the unsafe condition on these products.
Detalhes da diretiva
Número da AD
FAA-2019-0568
Número do documento
2019-20054
Tipo
Proposed Rule
Data de publicação
September 20, 2019
Encerramento dos comentários
November 4, 2019
Fabricante afetado
CFM International S.A. Turbofan
Criticidade
routine
Emergência
Não
Docket ID
Docket No. FAA-2019-0568
Tópicos
Documentos oficiais
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