Lt. Col. David Black, 442d Maintenance Group commander, left, passes the guidon to Maj. Bobby Cheek, 442d Aircraft Maintenance Squadron commander, during an Assumption of Command ceremony at Whiteman Air Force Base, Mo., November 2, 2019. Cheek is the former commander of the 924th AMXS at Davis-Monthan AFB, Arizona. (U.S. Air Force photo by Staff Sgt. Missy Sterling)