As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE MAINTENANCE DISCOVERED L3 UPPER AND LOWER EMERGENCY LIGHTS, UPPER R3 DOOR LIGHTS AND LIGHTS AT ROW 4L INOPERATIVE. REMOVED AND REPLACED L3 DOOR EMERGENCY BATTERY PACK IAW B757 AMM 33-51-07. SYSTEM OPERATIONAL CHECK GOOD.