As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND EMERGENCY LIGHT BATTERY PACK LOW CAPACITY AT R3 DOOR OHAR, DOOR 4 AREA REF HAECO NON-ROUTINE NO:9491233 - SPEC NO.B777-33-3-7015. REPLACED THE BATTERY M9073 AND NEW BATTERY PACK TEST FOUND NORMAL AS PER AMM 33-51-06-960-802 REV 1 01.WDM 33-51-66 REV 78.