Helicopter Sikorsky SH-60B Seahawk Serial 70-1711 Register 164178 used by US Navy USN. Aircraft history and location Aircraft History 164178 US Navy 1999-04 A KNZY HSL-45 HSL-45 / TZ-57 HSL-45 2010 USN as TZ-57/HSL-45 2011 TH-51/HSL-37 HSL-45 Send Updates Use APP to upload photo @ (optional) When Now? / / Send