As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THE CABIN EMERGENCY LIGHTING FOR ROWS 21 THROUGH 31 ON CAPTAIN'S SIDE ARE INOPERATIVE. MAINTENANCE REPLACED THE POWER PACK AT ROW 22, LEFT SIDE PER AMM. OPERATIONAL CHECK WAS GOOD. ETOPS CATEGORY 'E': PROBLEMS WITH SYSTEMS CRITICAL TO ETOPS