EASA Regulations for Pratt & Whitney Canada PT6B

EASA SIB CASA-2025-07

Py Lines and Fuel Control Unit Contamination

The Transport Canada Civil Aviation Safety Alert CASA-2025-07 addresses contamination issues in the Py lines and Fuel Control Unit (FCU) of Pratt & Whitney Canada Corp. PT6B-37A model engines. This alert informs owners, operators, and maintainers about reported contamination that can affect engine performance during critical phases such as takeoff and climb.