Resumen
We are adopting a new airworthiness directive (AD) for Sikorsky Aircraft Corporation (Sikorsky) Model 269A, 269A-1, 269B, 269C, 269C-1, 269D, and TH-55A helicopters. This AD requires repetitively inspecting and lubricating the tail rotor (T/R) driveshaft splined fittings. This AD was prompted by a report that the T/R driveshaft can disconnect due to deterioration of the splined coupling. The actions are intended to detect and prevent excessive wear of the splined coupling, which could lead to failure of the T/R driveshaft and subsequent loss of control of the helicopter.
Detalles de la directiva
Número de AD
FAA-2015-1008
Número de documento
2015-28313
Tipo
Rule
Fecha de publicación
November 10, 2015
Fecha de entrada en vigor
December 15, 2015
Fabricante afectado
Sikorsky Aircraft Corporation (Type Certificate Previously Held by Schweizer Aircraft Corporation)
Criticidad
important
Emergencia
No
Docket ID
Docket No. FAA-2015-1008
Temas
Documentos oficiales
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