As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT CAPACITY TEST FND 2L-3L 2R-3R FLOOR EMER LIGHT ILLUMINATE TIME LESS THAN 15 MIN SPEC NR B777-33-3-7019 REF NON-ROUTINE NR 9483889. REPLACED R2 DOOR THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK, AND PERFORMED THE TEST, THE RESULT FOUND NORMAL REF AMM 33-51-06-960-802 REV 86.