As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: ALL EMERGENCY LIGHTS TO EMERGENCY LIGHTS POWER SUPPLY M33407 LOCATED ABOVE L4 DOOR ARE INOPERATIVE. REPLACED EMERGENCY LIGHTS POWER SUPPLY M33407 BATTERY PACK PER 33-51-06-960-802. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.