As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT 7104, L/P 5212794) ON SVC CK FOUND 1ST CLASS EMERG EXIT AISLE LIGHTS INOP. T/S PER B777 WDM FOUND CONTINUITY FROM PIN 14 ON CONNECTOR M33094 TO PIN 33 ON CONNECTOR D3111P.(442268) REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK POWER SUPPLY M33094 PER B777 AMM 33-51 OPS CK GOOD.