Examines conditions present in six U.S. Air Force Major Defense Acquisition Programs (MDAPs) experiencing extreme cost growth, using case study analysis. This report is a companion to Air Force Major Defense Acquisition Program Cost Growth Is Driven by Three Space a Program and the F-35: Fiscal Year 2013 President's Budget Selected Acquisition Reports (RR-477-AF, 2014), which analyzed cost growth trends in current U.S. Air Force MDAPs.