Helicopter Sikorsky MH-60S Seahawk Serial Register 166308 used by US Navy USN. Aircraft history and location Aircraft History 166308 US Navy 2011-12-06USN 2007 HSC-28 /BR-46 COMSIXTHFLT USS USS Mount Whitney (LCC-20) w/o 06Dec11 ? HSC-28 Send Updates Use APP to upload photo @ (optional) When Now? / / Send