As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B777-33-3-7019 CABIN L4 DR EXIT SIGN AND 46ABC-52ABC CEILING EMER AREA LT CAPACITY CHECK FAIL (L4DR M33407).TRANSFER REF HX.WO1319270 AND ORIGINATED BY V907889. CABIN L4 DR M33407 EMER POWER SUPPLY BATTERY AND CHARGER REPALCED AND INSTALLATION TEST NORMAL PER AMM 33-51-06. WORK ACCOMPLISHED BY MECHANIC V907889 AND ORIGINATED BY V898173.