Operation Snowbird Update Published Nov. 16, 2011 By 011111 DAVIS-MONTHAN AIR FORCE BASE, Ariz. -- The Air National Guard, Air Force Reserve Command Test Center will operate from here through Nov. 24 at Operation Snowbird facilities. Test Center personnel based at Tucson International Airport are employing five F-16 Fighting Falcons to conduct tests on the aircrafts' operating software and weapon systems. On arrival and departure, pilots will comply with all of the base's traffic patterns and noise abatement procedures. -30-