Helicopter Sikorsky MH-60S Seahawk Serial Register 166364 used by US Navy USN. Aircraft history and location Aircraft History 166364 US Navy USN 2011 HSC-23 /WC-54 HSC-23 2019-02-06 A KLSV during Red Flag 19-1 at Nellis, NV Red Flag 19-1 Send Updates Use APP to upload photo @ (optional) When Now? / / Send