PITTSBURGH INTERNATIONAL AIRPORT AIR RESERVE STATION, Pa. -- Chief Master Sgt. Michael C. Heim, squadron superintendent of the 32nd Aerial Port Squadron, receives his new rank in front of family, friends, and fellow Steel Airmen at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, June 5, 2021. Attaining the rank of chief master sergeant is a great achievement within the Air Force as it is the highest enlisted rank.