Transport i infrastruktura · 7.06.1994
Airworthiness Directives; Hartzell Propeller Inc. HC-E4 Series Propellers
The Federal Aviation Administration (FAA) issues a new airworthiness directive for Hartzell Propeller Inc. Model HC-E4A-3A/E10950() composite bladed propellers to address 15 reported propeller blade pitch change knob screw failures.