RedactedNarrative: Subjects were riding a rented jet ski in the currituck sound.  They stated that they were going approximately 20-30 mph in the process of returning at the end of the rental period.  While on plane, the hood cowling came unattached from the vessel and struck victim on the head.  The vehicle stopped and victim began crying and complaining of a headache, neck pain and blurred vision.  Father retrieved the piece of the motor and brought victim and the missing piece of the vessel to the dock.  Victim was transported to outer banks hospital via ambulance for evaluation.  Pictures indicate that the cowling had been taped on with some sort of industrial type tape.  When officer arrived on scene to check on the vessel, the tape had been removed and the cowling was screwed to the jet ski.