Alaska Air National Guard Staff Sgt. Arnel Ramos, an electronic warfare systems mechanic assigned to the 176th Maintenance Squadron, tests a HC-130 Hercules electronic countermeasure system while performing an isochronal inspection at Joint Base Elmendorf-Richardson, Alaska, Nov. 16, 2016. Isochronal inspections are performed to ensure that aircraft are safe and remain mission ready. (U.S. Air Force photo/Alejandro Pena)
<br>Unit: Joint Base Elmendorf-Richardson Public Affairs
Alejandro Pena
<a rel="nofollow" class="external free" href="https://www.dvidshub.net/image/2997677/alaska-air-national-guardsmen-keep-176th-wing-mission-ready">https://www.dvidshub.net/image/2997677/alaska-air-national-guardsmen-keep-176th-wing-mission-ready</a>