Compass Call Crew Airmen remove the panel on the right horizontal stabilizer of an EC-130H Compass Call at Davis-Monthan Air Force Base in Tuscon, Ariz., Aug. 30, 2016. The airmen are assigned to the 755th Aircraft Maintenance Squadron. Air Force photo by Senior Airman Betty R. Chevalier SHARE: Download: Full Size (1.74 MB) Credit: Senior Airman Betty R. Chevalier VIRIN: 160830-F-WQ860-033A.JPG Photo Gallery