RedactedNarrative: On July 11, 2014 at 1510 Hrs. I observed a 62' Blue Hull Sport Fishing Vessel, M/V "GEE DADDY" traveling east from the Lynnhaven River Basin. As the vessel approached the Long Bay Pointe Marina, I observed it making a port turn towards the marina docking area, then its direction changed from forward motion while turning to port, to an aft direction and increased speed astern. As it neared the opposite side of the waterway, it began to turn hard to port while the bow was swinging toward the shoreline dock structures. The bow of the "GEE DADDY" struck a boat-lift and dock piling structure. Damage consisted of broken pilings and broken boat-lift materials. Damage estimated at approximately $14,000.00. to the dock structure. The "GEE DADDY" sustained damage to its port side hull and bow rails. Damage consisted of deep scratches to the port side hull and most of the port side bow railing torn off. Estimated damage approximately $5,000.00 to the "GEE DADDY". 
  The operator of the "GEE DADDY", stated that he was returning from Bluewater Yacht Dockyard in Hampton after repairs were made to the vessel. He stated the throttles and gear shifts were stuck, and as a result had lost control of their operation. The owner of "GEE DADDY", arrived at Long Bay Pointe Marina where the "GEE DADDY" was secured after getting control back from the malfunctioning throttles. Owner took command of the "GEE DADDY" and was able to maneuver the vessel to her dock. There was no reported injuries to any crew or bystanders. all parties involved are known to each other, and accident information shared with both property owners.