Helicopter Sikorsky CH-53D Sea Stallion Serial 65-176 Register 156672 used by US Marine Corps USMC. Aircraft history and location Aircraft History 156672 US Marine Corps Sikorsky S-65A, c/n 65-176, ff:? del USMC as CH-53D 156672, unk Send Updates Use APP to upload photo @ (optional) When Now? / / Send