What was found
FOR FLIGHT 4262 THE CREW REPORTED DURING THE PREFLIGHT INSPECTION THE 5 CABIN EMERGENCY EXIT LIGHTS WILL NOT STAY ON FOR MORE THAN 30 SECONDS. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED BATTERY PACKS PER W/C 33-002 OPS CHECKED GOOD. NR 1 P/N 2013-1A, S/N 69968, NR 2 P/N 2013-1A, S/N 104867, NR 3 P/N 2013-1A, S/N 67900, NR 4 P/N 2013-1A, S/N 13239. THE AIRCRAFT WAS RETURNED TO SERVICE.