As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN R4 DOOR M33409 BATTERY CAPACITY TEST LESS THAN 15 MINUTES REF TO HAECO NON-ROUTINE NO.9473842, SPEC NO. B777-33-3-7019. R4 DOOR BATTER Y M33409 REPLACED, PERFORMED BATTERY PACK TEST FOUND ''NORMAL'' AS PER AMM 33-51-06-960-802 REV 99.