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 4L POWER SUPPLY M33407 REF TO HAECO NON-ROUTINE NO.9453345, ORIGINATED BY EMP V905359, 86-3350-1-0002 PERFORMED BY EMP V905359 AND IDT BY EMP V903667 - REPLACED POWER BATTERY PACK AT DOOR L4 (M33407) AND PERFORMED INSTALLATION TEST WAS NORMAL PER AMM 33-51-06-960-802 REV 106