EASA Regulations for De Havilland Aircraft of Canada Limited DHC-8

Propellers - Auxiliary Motor and Pump - Replacement

The Federal Aviation Administration's Airworthiness Directive 2024-07-01 addresses Hamilton Sundstrand Corporation Model 14SF-7, 14SF-15, and 14SF-23 propellers installed on aircraft including De Havilland Aircraft of Canada Limited DHC-8 series. This directive mandates the replacement of a specific auxiliary motor and pump to prevent in-flight failure to feather the propeller. It also prohibits the installation of the affected auxiliary motor and pump part number on these propellers.