Westinghouse's Advanced Coal-Fueled Gas Turbine System Program is split into two major phases -- a Basic Program and an Option. The Basic Program, contains the development of a 6 atm, 7 lb/s, 12 {times} 10{sup 6} Btu/hr slagging combustor. Included in this phase is an extended period of testing of the subscale combustor developed under this program. In the second phase of the Basic Program, the combustor would be operated over a 3-month period with a stationary cascade to study the effect of deposition, erosion and corrosion on combustion turbine components. The option is primarily devoted towards performing a verification test of a 70 {times} 10{sup 6} Btu/hr combustor. This task requires utilization of a facility which has a capability to deliver a 700{degrees}F air flow of 40 lb/s at a pressure of 14 atm. Critical slagging combustor technology concerns that are being addressed within this program include: slag removal; sorbent stimulated sulfur removal in the slag; suppression of NO{sub x} formation; complete carbon burnout; adequate particulate capture; acceptable pressure loss and availability; slag, particulate and sulfur removal from fuel-rich primary combustion gases in the second stage; and final gas oxidation and dilution in the third stage (operated lean). This report describes the subscale slagging combustor test (apparatus, plan, test results and discussion). The paper briefly discusses two ancillary sulfur studies: spent sorbent stability in molten slag and basic sulfur capture. The status of four other projects is also discussed: slagging cyclone, real-time slag tapping, cascade design and fabrication, and update of reference system definition. 5 refs., 29 figs., 8 tabs.