What was found
AIRCRAFT WAS GROUNDED: AFT LEFT POWER SUPPLY UNIT (EMERGENCY LIGHTS) FAULT. MAINTENANCE FOUND THE AFT CEILING EMERGENCY LIGHT TO BE DEFECTIVE AND REPLACED IT. (AALA202209092767) ALSO FOUND EMERGENCY LIGHT WIRE DAMAGED ON SEAT ROW 26ABC AND REPAIRED IT PER ESPM 20-24-00. (AALA202209097581) IN ADDITION, REPLACED EMERGENCY POWER SUPPLY UNIT 13WL PER AMM 33-51-38. (AALA202209097020). A SATISFACTORY OPERATIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM WAS ACCOMPLISHED.