What was found
FUEL VALVE SWITCH IS SPRING-LOADED TO FAIL IN THE 'OFF' POSITION. IF SWITCH IS WORN, IN-FLIGHT VIBRATION COULD CAUSE SWITCH TO POP INTO OFF POSITION RESULTING IN IMMEDIATE ENGINE SHUT-DOWN.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FUEL VALVE SWITCH IS SPRING-LOADED TO FAIL IN THE 'OFF' POSITION. IF SWITCH IS WORN, IN-FLIGHT VIBRATION COULD CAUSE SWITCH TO POP INTO OFF POSITION RESULTING IN IMMEDIATE ENGINE SHUT-DOWN.