What was found
JFK/SJO - FLT LR661 - DURING DEPARTURE - AIRCRAFT WAS PARKED AT THE DELTA TERMINAL NR 2, GATE 27. WHILE THE TRACTOR DRIVER WAS POSITIONING TO PUSH-BACK, HE HIT THE TOW BAR AND IT BOUNCED INTO THE AIRCRAFT CAUSING A 3.5 INCH HOLE ON THE BOTTOM LEFT HAND SIDE ON THE NOSE FUSELAGE. THE FLIGHT WAS CANCELLED. MAINTENANCE TECHNICIANS ARE PERFORMING EVALUATION OF THE DAMAGE AND REPAIRS WILL BE PERFORMED. (X)