As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT BATTERY TEST FOUND M33400 BATTERY INOP,ORIGINATE D BY EMP V903172,REF TO HAECO NON ROUTINE NO.9469613.PERFORMED BY EMP V903172 - REPLACED THE L3 DOOR M33400 EMERGENCY LT BATTERY AND C/O OP TEST.FND NORMAL PER AMM 33-51-06-960-802 REV 104.