As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT MX - ONT - WHILE PERFORMING INTERVALS 2A CHECK AT ONT AND PERFORMING AN OPERATIONAL CHECK FOR THE EMERGENCY LIGHTING SYSTEM, THE MX TECHNICIAN FOUND THAT THE EMERGENCY LIGHT IN GALLEY AREA WAS INOP. MX PERSONNEL REMOVED AND REPLACED THE EMERGENCY LIGHT BATTERY NR 2 LOCATED ABOVE THE SERVICE DOOR, OPERATIONALLY CHECKED SATISFACTORY. A/C WAS RELEASED TO RETURN FOR SERVICE.