Helicopter Sikorsky MH-60R Seahawk Serial Register 166597 used by US Navy USN. Aircraft history and location Aircraft History 166597 US Navy USN HSM-74 /AC-703 HSM-74 2011-05May11 HSM-74./HP-703 HSM-74 2015 HSM-48 /HR HSM-48 Send Updates Use APP to upload photo @ (optional) When Now? / / Send
