As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R3 DOOR AFT EMERGENCY LIGHT BATTERY PACK M33401 FOUND MALFUNCTIONED. REPLACED R3 DOOR AFT EMERGENCY LIGHT PO WER SUPPLY M33401 & BATTERY PACK,THE PERFORMED NEW POWER SUPPLY AND NEW BATTERY PACK INSTALLATION TEST,THE RESULT NORMAL AS PER AMM 33-51-06-960-803 & AMM 33-51-06-960-802 REV.104.