EASA Regulations for Hamilton Sundstrand 14SF

2 airworthiness directives and regulations affecting Hamilton Sundstrand 14SF.

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New ADs and bulletins for Hamilton Sundstrand 14SF, summarized like the ones below, every Monday.

EASA AD US-2024-07-01

May 29, 2024

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.

Airworthiness Directive
  • Hamilton Sundstrand 14SF
  • De Havilland Aircraft of Canada Limited DHC-8

EASA AD US-2023-16-06

Oct 17, 2023

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 Directive
  • Hamilton Sundstrand 14SF
  • Viking Air Limited CL-215-6B11
  • Viking Air Limited CL-415