Helicopter Sikorsky MH-60S Seahawk Serial 70-3935 Register 168540 used by US Navy USN. Aircraft history and location Aircraft History 168540 US Navy 2014-07-29USN 29jul14 as HSC-9 /AJ-614 approaching USS Arleigh Burke (DDG 51) in the Arabian Gulf HSC-9 2017-09Sep17 HSC-11./AB-614 Send Updates Use APP to upload photo @ (optional) When Now? / / Send