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 NO.:9477292 - SPEC NR B777-33-3-7019 OPERATION CHK FND L2 DR AREA EMERGENCY LT PARTIAL INOP. THE L2 DM33096 BATTERY WAS REPLACED AND CARRY OUT TEST FND ''NORMAL'' REF AMM 33-51-06-960-802 REV 85. PN ON AD-D717-01-100, SN ON 219223, PN OFF AD-D717-01-100 SN OFF 107023.