MARINE CORPS BASE CAMP PENDLETON, Calif. – Sgt. Ike B. Gastelum, a crew chief with Marine Medium Helicopter Squadron 165, Marine Aircraft Group 16, 3rd Marine Aircraft Wing, I Marine Expeditionary Force, surveys the landing zone as a CH-46E “Sea Knight” with the squadron assists Marines with the helicopter rope suspension techniques course, here Oct. 28. The course teaches Marines to properly inspect and assist with fast roping, rappelling and SPIE rigging.::r::::n::(Official U.S. Marine Corps photo by Cpl. Christopher O’Quin)(Released)::r::::n:: - MARINE CORPS BASE CAMP PENDLETON, Calif. – Sgt. Ike B. Gastelum, a crew chief with Marine Medium Helicopter Squadron 165, Marine Aircraft Group 16, 3rd Marine Aircraft Wing, I Marine Expeditionary Force, surveys the landing zone as a CH-46E “Sea Knight” with the squadron assists Marines with the helicopter rope suspension techniques course, here Oct. 28. The course teaches Marines to properly inspect and assist with fast roping, rappelling and SPIE rigging.::r::::n::(Official U.S. Marine Corps photo by Cpl. Christopher O’Quin)(Released)::r::::n::