U.S. Air Force electrical and bio-environmental maintainers with the 177th and 158th Fighter Wings troubleshoot a pressure connection to the pilot’s helmet in an F-16C Fighting Falcon on the flight line at Boca Chica Naval Air Station, Fla. Nov. 8, 2018. Proper pressurization was achieved and the equipment was ops checked and returned to service. 177th FW maintenance, operations, logistics and security personnel traveled to the Key West Naval facility to take advantage of the weather and fly numerous training sorties. (U.S. Air National Guard photo by Senior Master Sgt. Andrew J. Moseley)