As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B777-33-3-7005 OFAR BACKUP EMERGENCY LIGHT BATTERY M33143 CAPACITY CHECK FAIL. TRANSFER REFER NON-ROUTINE WO.1658082 AND ORIGINATOR V897758. OFAR EMER LIGHT BATTERY M33143 REPLACED AND TESTED NORMAL AS PER AMM 33-51-06. WORK ACCOMPLISHED BY MECH V898181 AND INSPECTED BY V896958 IDT OKAY AND INSPECTED BY HX107723 ADD EMP:V907050