California Air National Guard Staff Sgt. Michael Foster pulls the pylon pins while performing end-of-runway checks on an F-15C Eagle during Sentry Aloha 17-03 at Joint Base Pearl Harbor-Hickam, Hawaii, March 30, 2017. Foster is a crew chief assigned to the California Air National Guard’s 44th Aircraft Maintenance Squadron. Air National Guard photo by Senior Master Sgt. Chris Drudge