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 R3 EMER LIGHT BATTERY M33401 CAPACITY CHECK FAIL. TRANSFER REF. NON-ROUTINE HX NRC WO.1582469 AND ORIGINATED BY EMP V898181. DR R3 EMER LIGHT BATTERY M33401 REPLACED AND TESTED NORMAL AS PER AMM33-51-06. WORK ACCOMPLISHED BY MECHANIC V898181 INSPECTED BY V896958. IDT INSPECTED OKAY BY HX209496. ADD EMP:V898558