Helicopter Sikorsky MH-60S Seahawk Serial Register 165757 used by US Navy USN. Aircraft history and location Aircraft History 165757 US Navy USN 2012 HSC-21 /VR-65 HSC-21 2014-04-10 A KNJK asg HSC-23, rolled over on side during degraded visual enviroment landing HSC-23 Send Updates Use APP to upload photo @ (optional) When Now? / / Send