INJURED WAS GOING THROUGH A SET OF AIR LOCK DOORS ON A BATTERY RIDE. HE CLOSED THE FIRST SET OF DOORS, OPENED THE SECOND SET. GOT ON HIS RIDE TO GO THROUGH THE SECOND SET. WHEN HE PUSHED THE TRAM PEDAL DOWN, THE PEDAL STUCK, HE HAD IMPACT WITH THE TOP OF DOOR FRAME. HE CUT HIS NECK, BROKE INDEX FINGER ON LEFT HAND, AND HAD A FRACTURE TO HIS UPPER JAW.