What was found
AIRCRAFT WAS NOT GROUNDED: SEAT MOUNTED EMERGENCY LIGHT AT ROW 1,2,5,9;10,14,15 NOT WORKING/INOPERATIVE. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT 10WL (AALA202602260895) AND BATTERY (AALA202602273561) PER AMM 33-51-38. A SATISFACTORY OPERATIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM WAS ACCOMPLISHED WITH NO ISSUES NOTED.