EASA AD US-2023-16-06
Propellers - Auxiliary Motor and Pump - Replacement
Federal Aviation Administration Airworthiness Directive 2023-16-06 is a final rule addressing all Hamilton Sundstrand Corporation Model 14SF-17 and 14SF-19 propellers, which are installed on aircraft including Viking Air Limited Model CL-215-6B11 and CL-415 variants. This directive mandates replacement of a specific auxiliary motor and pump assembly to prevent in-flight failure to feather the propeller. The AD aims to enhance flight safety by mitigating risks associated with motor magnet corrosion causing loss of propeller feathering capability.
Airworthiness DirectiveMaintenanceSafety MgmtHamilton Sundstrand 14SFViking Air Limited CL-215-6B11Viking Air Limited CL-415