As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN THE DIM FUNCTION ON THE CONSOLE IS UTILIZED FOR THE INSTRUMENT LIGHTING, THE CIRCUIT BREAKER TRIPS. TRANSISTOR, PN 130-007-1 USED IN THE SYS HAS FOUND A GROUND ON THE BASE OR CASE. THE INSULATOR SEPARATING TRANSISTOR FROM ALUMINUM BRACKET IS A PLASTIC WASHER AND A STRIP OF TAPE THAT OVER TIME DETERIORATES DUE TO VIBRATION AND EXPOSURE WHICH RESULTS IN A POPPING CIRCUIT BREAKER.