Helicopter Sikorsky HH-60H Rescue Hawk Serial Register 163783 used by US Navy USN. Aircraft history and location Aircraft History 163783 US Navy USN Apr00 HCS-4 HCS-4 2007-08-10w/o 10aug07 HCS-4 /NW-202 near Baghdad, Iraq HCS-4 Send Updates Use APP to upload photo @ (optional) When Now? / / Send