Helicopter Sikorsky CH-53D Sea Stallion Serial 65-322 Register 157746 used by US Marine Corps USMC. Aircraft history and location Aircraft History 157746 US Marine Corps Sikorsky S-65C, c/n 65-322, ff:? del USMC as CH-53D 157746, unk Send Updates Use APP to upload photo @ (optional) When Now? / / Send