AIR & SPACE MAGAZINE Arch Light It’s almost time to change the bulb atop the St. Louis Gateway Arch. USAF/MSGT William Boardman January 30, 2012 An air-to-air left side view of a C-140 Jetstar aircraft of the 1866th Facility Checking Squadron, Scott Air Force Base, Illinois, flying by the St. Louis Arch. MSGT WILLIAM BOARDMAN Get the latest stories in your inbox every weekday.