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 M33401 EMER LIGHT BATTERY TEST FAIL. TRANSFER REF.NON-ROUTINE HX NRC WO.2960138 AND ORIGINATED BY . DR R3 M33401 EMER LIGHT BATTERY REPLACED AND TESTED NORMAL AS PER AMM 33-51-06 AND ATTACH FORM 44-0008 ITEM 1 TO 2 ACCOMPLISHED.