As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R4 DOOR M33409 BATTERY PACK FOUND LOW CAPACITY DURING TEST REFER HAECO NON-ROUTINE LOG PAGE:9496593,ORIGINATED BY EMP:V903218,SPE C NO.B777-33-3-7019. PERFORMED BY EMP:V903218,REPLACED R4 DOOR M33409 BATTERY PACK AN D C/O NEW BATTERY PACK TEST. THE RESULT NORMAL AS PER AMM 33-51- 06-960-802 REV.101 IDT BY EMP:V905411.