As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE OVERHEAD EMERGENCY LIGHT AT L-1 DOOR FAILED TO ILLUMINATE DURING EMERGENCY LIGHT CHECK. MAINTENANCE FOUND NUT BACKED OFF OF GROUND 622 GROUNDING STUD AND GROUND WIRE LOOSE. THE NUT WAS REPLACED AND THE GROUND WIRE WAS SECURED. OPERATIONAL CHECKS WERE GOOD.