Helicopter Sikorsky MH-60S Seahawk Serial Register 166310 used by US Navy USN. Aircraft history and location Aircraft History 166310 US Navy 2007-01-26USN HSC-23 USS Bonhomme Richard (LHD-6) w/o 26jan07 crashed 50m off California HSC-23 Send Updates Use APP to upload photo @ (optional) When Now? / / Send