Air Force Tech. Sgt. Jeremy Garrow, left, an aircraft electrical and environmental system craftsman with the 509th Aircraft Maintenance Squadron (AMXS), and Staff Sgt. James Torrance, an aircraft electrical and environmental system craftsman with the 131st AMXS, monitor the cabin pressure during an annual test at Whiteman Air Force Base, Mo., July 27, 2017. These specialists are responsible for all the wiring and environmental control units on the aircraft. ( Air Force photo/Staff Sgt. Danielle Quilla)

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Keywords: -2, 509th, air, aircraft, altitudes, amxs, electrical, environmental, fly, maintenance, mission, pressurization, propulsion, spirit, squadron, system