As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TWO EACH EXIT SIGNS AT UPPER DECK DOORS, ONE IN CENTER CEILING FORWARD AND ONE ABOVE THE R/H DOOR STAY ON WHEN EMERGENCY LIGHT SWITCH IS MOVED FROM ON TO ARMED. FOUND POWER SUPPLY M7050 BAD. REPLACED POWER SUPPLY AND BATTERY. OPS CHECK GOOD SYSTEM OPERATES NORMALLY. REF AMM 33-51-04.