Helicopter Sikorsky CH-53D Sea Stallion Serial 65-297 Register 157171 used by US Marine Corps USMC. Aircraft history and location Aircraft History 157171 US Marine Corps Sikorsky S-65C, c/n 65-297, ff:? del USMC as CH-53D 157171, unk 1974-07-19w/o 19jul74 with HMM-162 HMM-162 Send Updates Use APP to upload photo @ (optional) When Now? / / Send