Closures due to the Change of Command Sept. 9 Published Aug. 24, 2011 By Airman 1st Class Christopher Reel 325th Fighter Wing Public Affairs TYNDALL AIR FORCE BASE, Fla. -- Medical Group: The 325th MDG will be closed Sept. 9, until noon for the change of command ceremony. Flight medicine will have afternoon sick call. Mission Support Group: Check www.tyndall.af.mil for closure updates. Maintenance Group: Check www.tyndall.af.mil for closure updates. Operations Group: The 325th OG commander's office will be closed the morning of Sept. 9 for the change of command ceremony. Call in advance for any other unexpected closures.