Senior Airman Christian Chavez, 11th Logistics Readiness Squadron vehicle maintainer, installs an Automated Information Module 2 (AIM2) fuel sensing ring at Joint Base Andrews, Md., May 17, 2013. Maintainers have installed the system on more than 500 vehicles since October 2012. (U.S. Air Force photo/Airman 1st Class Nesha Humes)