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 1L POWER SUPPLY M33424 REF TO HAECO NON-ROUTINE NO.9455172, REPLACED POWER BATTERY PACK AT DOOR L1 (M33424) AND PERFORMED INSTALLATION TEST WAS NORMAL PER AMM 33-51-06-960-802 REV 106