PITTSBURGH INTERNATIONAL AIRPORT AIR RESERVE STATION, Pa. -- Capt. Joseph E. Walters, commander of the 911th Aircraft Maintenance Squadron, assumed command of the 911th AMXS at the Pittsburgh International Airport Air Reserve Station, Pennsylvania Aug. 3, 2019. Walters takes the helm during a challenging time; the 911th Airlift Wing’s ongoing conversion from the C-130 Hercules to the C-17 Globemaster III is one of the most complex of its kind in the history of Air Force Reserve Command, said Col. Clifford Waller, commander of the 911th Maintenance Group.