As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B777-33-3-7019 - CABIN - DOOR R3 EMER LT BATTERY PACK M33401 CAPACITY CHECK FAIL. WORK TRANSFER NON ROUTINE WO.3551474 AND ORIGINATED BY EMP V920592. CABIN - DOOR R3 EMER LT BATTERY RACK M33401 REPLACED AND INSTALLATION TEST CARRIED OUT WITH NORMAL RESULT AS PER AMM 33-51-06.