As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH DOOR NO.4 BATTERY PACK M33407 CAPACITY CHECK FAIL - ORIGINATE D BY EMP V903215 ON HAECO NR 9491157, SPEC NO.B777-33-3-7007. PERFORMED BY EMP V905380, REPLACED LH DOOR NO.4 BATTERY M33407 A ND CARRIED OUT OPERATION TEST RESULT ''NORMAL'' REF TO AMM 33-51-0 6-960-802 REV 95.