As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A ROUTINE LINE MAINTENANCE INSPECTION THE EXTERIOR EMERGENCY LIGHT LOCATED NEAR THE AFT CARGO DOOR WAS FOUND TO BE INOPERATIVE. BATTERY PACK WAS FOUND TO BE INOPERATIVE. REPLACED BATTERY PACK PER 757 AMM 33-51-07. AFTER BATTERY PACK REPLACEMENT LIGHT OPERATION WAS NORMAL.