As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND CABIN R2 DOOR AREA M33098 EMERGENCY POWER SUPPLY BATTERY L OW CAPACITY,ORIGINATED BY EMP V903172,REF TO HAECO NON ROUTINE N O.9469115 SPEC NO.B777-33-3-7019. PERFORMED BY EMP V903172,REPLACED THE CABIN R2 DOOR AREA M33098 EMERGENCY POWER SUPPLY BATTERY PACK AND OP TEST CARRIED OUT,FOUN D NORMAL AS PER AMM 33-51-06-960-802 REV 99.IDT BY TA705.