As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT AT ROWS 22CBA TO 38CBA FAILED TO STAY ON AFTER D EEP-CYCLE TEST (B777-33-3-7019) REMOVED AND REPLACED BATTERY PACK AT DOOR 3L IAW B777 AMM 33-51- 06-960-802 OPS CHECK GOOD (ALL MAINTENANCE PERFORMED ON VTSAA N/ R 101146)