Resumo
The FAA is superseding Airworthiness Directive (AD) 2015-20-04 for certain Pratt & Whitney Canada Corp. (P&WC) PT6B-37A turboshaft engines. AD 2015-20-04 required initial and repetitive inspections until replacement of the No. 10 bearing, and eventual replacement of the No. 9 bearing, both located in the engine reduction gearbox (RGB) assembly. This AD requires removal from service and replacement of the No. 9 and No. 10 position bearings. This AD was prompted by reports of incorrect engine torque for PT6B-37A turboshaft engines. The FAA is issuing this AD to address the unsafe condition on these products.
Detalhes da diretiva
Número da AD
FAA-2018-0739
Número do documento
2019-25010
Tipo
Rule
Data de publicação
November 19, 2019
Data de vigência
December 24, 2019
Fabricante afetado
Pratt & Whitney Canada Corp. Turboshaft
Criticidade
routine
Emergência
Não
Docket ID
Docket No. FAA-2018-0739
Tópicos
Documentos oficiais
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