This report summarizes the findings and results of the KILnGAS Commercial Module RAM IIA (Reliability, Availability, and Maintainability) test operation, which was the culmination of the RAM IIA program. The RAM IIA program was performed by the Allis-Chalmers Coal Gas Corporation during the fourth quarter of 1986. Funding was provided by the Federal Department of Energy, the State of Illinois and the utility companies listed in the report. The KILnGAS Commercial Module (KCM) is a 600-ton-per-day gasification demonstration plant located on the site of the Illinois Power Company Wood River Generating Station in East Alton, Illinois. The plant was commissioned in 1983, and initial demonstration testing was conducted in 1984. The RAM program was initiated in 1985 and the first phase of the program (RAM I) was concluded in April 1986. Descriptions of the KILnGAS process and the KILnGAS Commercial Module, and of the overall KILnGAS program appear in numerous public documents, and specifically in the ''Program Plan for KILnGAS RAM IIA,''prepared for the US Department of Energy. RAM I focused primarily on the introduction of performance-oriented plant improvements, followed by testing to evaluate their effectiveness. By comparison, RAM IIA focused on several areas including plant availability and performance improvements, and on formalizing data acquisition on plant reliability, availability, and maintainability. RAM IIA testing began with plant startup on October 13, and was concluded with the initiation of plant shutdown activities on December 21, 1986. The test approach is described in the ''Test Plan for KILnGAS RAM IIA,''issued on September 26, 1986. The KCM flow diagram for the RAM IIA test is presented in Appendix C to this document. 16 figs., 10 tabs.