621CRS works alongside 730 AMS

Staff Sgt. Eric Booker, 621st Contingency Response Squadron crew chief, steps out from a C-5M Super Galaxy at Yokota Air Base, Japan, Aug. 16, 2016. The 621 CRS sent 12 aircraft maintainers to Yokota to gain proficiency and training on a variety of aircraft used in contingency operations. (U.S. Air Force photo by Yasuo Osakabe/Released)

Staff Sgt. Eric Booker, 621st Contingency Response Squadron crew chief, steps out from a C-5M Super Galaxy at Yokota Air Base, Japan, Aug. 16, 2016. The 621 CRS sent 12 aircraft maintainers to Yokota to gain proficiency and training on a variety of aircraft used in contingency operations. (U.S. Air Force photo by Yasuo Osakabe/Released)

A C-5M Super Galaxy from the Travis Air Force Base, California, is ready to taxi at Yokota Air Base, Japan, Aug. 16, 2016. The aircraft was originally delivered to the Air Force in July 1986 and has recorded approximately 21,975 flight hours over its career. (U.S. Air Force photo by Yasuo Osakabe/Released)

A C-5M Super Galaxy from the Travis Air Force Base, California, is ready to taxi at Yokota Air Base, Japan, Aug. 16, 2016. The aircraft was originally delivered to the Air Force in July 1986 and has recorded approximately 21,975 flight hours over its career. (U.S. Air Force photo by Yasuo Osakabe/Released)

Members with the 621st Contingency Response Squadron conduct preflight checks on a C-5M Super Galaxy at Yokota Air Base, Japan, Aug. 16, 2016. The 621 CRS sent crew chief to Yokota to gain proficiency and training on a range of aircraft, working alongside the 730th Air Mobility Squadron. The 730 AMS often works with C-5, C-17A Globemaster III, KC-135 Stratotanker, KC-10A Extender and civilian aircraft. (U.S. Air Force photo by Yasuo Osakabe/Released)

Members with the 621st Contingency Response Squadron conduct preflight checks on a C-5M Super Galaxy at Yokota Air Base, Japan, Aug. 16, 2016. The 621 CRS sent crew chief to Yokota to gain proficiency and training on a range of aircraft, working alongside the 730th Air Mobility Squadron. The 730 AMS often works with C-5, C-17A Globemaster III, KC-135 Stratotanker, KC-10A Extender and civilian aircraft. (U.S. Air Force photo by Yasuo Osakabe/Released)

Capt. Aaron Vogeler, 621st Contingency Response Squadron aircraft maintenance flight commander, observes his crew chiefs at Yokota Air Base, Japan, Aug. 16, 2016. The 621 CRS aircraft maintenance personnel are tasked to recover, service and launch multiple types of aircraft used in contingency operations. (U.S. Air Force photo by Yasuo Osakabe/Released)

Capt. Aaron Vogeler, 621st Contingency Response Squadron aircraft maintenance flight commander, observes his crew chiefs at Yokota Air Base, Japan, Aug. 16, 2016. The 621 CRS aircraft maintenance personnel are tasked to recover, service and launch multiple types of aircraft used in contingency operations. (U.S. Air Force photo by Yasuo Osakabe/Released)

Crew chiefs with the 621st Contingency Response Squadron search for foreign objected debris at Yokota Air Base, Japan, Aug. 16, 2016. The 621 CRS Airmen visited Yokota to work alongside the 730th Air Mobility Squadron, gaining experience on a variety of air frames, including C-5s, C-17 Globemaster IIIs, and civilian aircraft. (U.S. Air Force photo by Yasuo Osakabe/Released)

Crew chiefs with the 621st Contingency Response Squadron search for foreign objected debris at Yokota Air Base, Japan, Aug. 16, 2016. The 621 CRS Airmen visited Yokota to work alongside the 730th Air Mobility Squadron, gaining experience on a variety of air frames, including C-5s, C-17 Globemaster IIIs, and civilian aircraft. (U.S. Air Force photo by Yasuo Osakabe/Released)

YOKOTA AIR BASE, Japan --