What was found
FLT 5763 - YOW-PHL - DURING TAXI-OUT, THE CREW NOTED THAT THE FORWARD PORTION OF THE EMERGENCY ESCAPE PATH LIGHTING WAS INOPERATIVE. THE AIRCRAFT RETURNED TO THE GATE WHERE MAINTENANCE DEFERRED THIS ITEM PER MEL 33-51-01-5. DURING OVERNIGHT MAINTENANCE, THE EMERGENCY ESCAPE PATH LIGHTING WAS REPLACED. OPS CHECK GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)