U.S. Marine Corps Sgt. Rachel Myers, a crew chief with Marine Heavy Helicopter Squadron (HMH) 361, Marine Aircraft Group 16, 3rd Marine Aircraft Wing, performs preflight checks in a CH-53E Super Stallion at Marine Corps Air Station, California, Dec. 13, 2023. As a crew chief, Myers communicates with pilots about in-flight instructions, alerts to any obstacles not visible from the pilot's point of view and works within the maintenance department where they inspect, service, maintain, and repair helicopters. (U.S. Marine Corps photo by Lance Cpl. Samantha Devine) - U.S. Marine Corps Sgt. Rachel Myers, a crew chief with Marine Heavy Helicopter Squadron (HMH) 361, Marine Aircraft Group 16, 3rd Marine Aircraft Wing, performs preflight checks in a CH-53E Super Stallion at Marine Corps Air Station, California, Dec. 13, 2023. As a crew chief, Myers communicates with pilots about in-flight instructions, alerts to any obstacles not visible from the pilot's point of view and works within the maintenance department where they inspect, service, maintain, and repair helicopters. (U.S. Marine Corps photo by Lance Cpl. Samantha Devine)