What was found
NWA NR88, 12/24/05, HNL-SEA: SEAT-SPECIFIC CABIN LIGHTING SYSTEM FAILED AT ALL SEATS, SHORTLY AFTER IN-FLIGHT ENTERTAINMENT/VIDEO SYSTEM FAILURE. OCCURRED 2 HOURS INTO THE TRANS-PACIFIC FLIGHT, WELL BEFORE THE MID-WAY POINT. LIGHTS RESTORED AFTER 45 MIN. UPON TOUCHDOWN IN SEA ALL MAIN CABIN LIGHTS FAILED, LEAVING CABIN TOTALLY BLACK. NO EMERGENCY LIGHTS VISIBLE. PASSENGERS USED FLASHLIGHT FOR 5-10 MINS WHILE WAITING TO BE HOOKED UP TO GROUND AUX PWR AT THE GATE.