What was found
AIRCRAFT WAS GROUNDED: ESCAPE PATH SEAT MOUNTED LIGHTING INOPERATIVE AT SEAT ROWS 13ABC, 17ABC, 22ABC, 24ABC, 26ABC. REPLACED EMERGENCY POWER SUPPLY 13WL(AALA202106189006) AND BATTERY PACK (AALA202106219019) PER AMM 33-51-00. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.