As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE EMERGENCY LIGHT BATTERY PACK DEEP CYCLE CHECK FOUND BATTERY LOW ON THE DOOR 3L POWER SUPPLY M33303. REPLACED BATTERY PACK ON THE DOOR 3L POWER SUPPLY M33303, THEN PERFORMED INSTALLA TION TEST,THE RESULT WAS NORMAL IAW AMM 33-51-06-960-802 REV 106 .