As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAINTENANCE FOUND THE EMERGENCY EXIT SIGN NEXT TO THE RT OVERWING EXIT INOPERATIVE. THROUGH TROUBLESHOOTING, THE NR 5 INVERTER WAS FOUND TO BE THE CAUSE OF THE FAULT. THE INVERTER WAS REPLACED AND THE EMERGENCY LIGHT OPERATED NORMALLY. (S)