This house is loud . . . or is it?
Staff Sgts. Andrew Beavers and Johnathan Lewis, 31st Maintenance Squadron phase crew chiefs, communicate with one another during a diagnostics test on an F-16 Fighting Falcon July 28, 2016, at Aviano Air Base, Italy. The 31st MXS hush house is open for engine diagnostics testing 24-hours a day. (U.S. Air Force photo by Airman 1st Class Cory W. Bush/Released)