As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REGULAR FUNCTIONAL CHECK OF ENGINE START SWITCHES, DISCOVERED THE NR1 AND NR2 ENGINE STARTING SWITCHES TO HAVE WORN DETENT IN THE SWITCH. THE SWITCH WAS ABLE TO BE MOVED FROM THE FLY POSITION TO THE OFF POSITION WITH OUT PULLING OUT OF DETENT.