Airman 1st Class Zhane Paul, 341st Missile Maintenance Squadron survivable systems team member, performs maintenance on a launch control center blast door Oct. 29, 2019, at a Missile Alert Facility near Malmstrom Air Force Base, Mont. The SST’s primary tasks include maintenance on operator chairs, railings and blast doors. (U.S. Air Force photo by Airman 1st Class Jacob M. Thompson)