Patrick Dagle, director, 751st Electronic Systems Group, looks at a 707 aircraft that has been used for parts reclamation at the 309th Aerospace Maintenance and Regeneration Group, Davis-Monthan AFB, Ariz. AMARG personnel removed a keel beam from the aircraft for an Electronic Systems Center Joint Surveillance Target Attack Radar System Senior Year Electro-optical Reconnaissance System program demonstration. (Courtesy photo)