As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DATA TRANSFER REF NON-ROUTINE NR :V905483 - SPEC NR B777-33-3-7019 OPERATION CHECK FOUND L3 DOOR AREA EMERGENCY LIGHT PARTIAL INOP. THE L3 DM33400 BATTERY WAS REPLACED AND CARRY OUT TEST FOUND ''NORMAL'' REF AMM 33-51-06-960-802 REV85 PN ON AD-D717-01-100 SN ON 219234, PN OFF AD-D717-01-100 SN OFF 98113.