As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B777-33-3-7019 - DR L3 M33302 EMER LIGHT BATTERY TEST FAIL TRANSFER REFER NON-ROUTINE WO.1821511 AND ORIGINATED BY EMP V898181 DR L3 M33302 EMER LIGHT BATTERY REPLACED AND TESTED NORMAL AS PER AMM 33-51-06 WORK ACCOMPLISHED BY MECH V898181 AND INSPECTED BY V896958