As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF NR L/P:9458096 - SPEC NR B777-33-7-7019 - C ZONE RT AFT CEILING AREA EMERGENCY LIGHT POWER PACK FOUND LOW CAPACITY. DOOR RT 4 BATTERY M33409 REPLACED AND F4 FUSE REPLACED, C/O EMERGENCY LT TEST, THE RESULT FOUND NORMAL AS PER AMM 33-51-06- 960-802 REV.83.