As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AN OVERNIGHT LINE CHECK THE EMERGENCY LIGHTS FROM ROW 33 AFT INCLUDING THE DOOR FOUR RIGHT EXIT SIGN TO BE INOPERATIVE. MAINTENANCE FOUND POWER SUPPLY M736 TO BE DEFECTIVE AND REPLACED IT. THE SYSTEM OPERATED NORMALLY AFTER THE POWER SUPPLY WAS REPLACED.