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 9475250, SPEC NO.B777-33-3-7019 - EMERGENCY LIGHT BATT PACK CAPACITY CHK FND DR4 RT BATT PACK DM33409 BATT PACK OUT OF LIMIT P/N:ADD717-01-1 00. PERFORMED EMERGENCY LT BATTERY PACK REPLACED AND EMERGENCY LT TEST CARRIED OUT THE RESULT FND "SATIS" REF AMM 33-51-06-960-802 REV85.