John,
Several years ago I personally experienced a runaway fuel pump during a slam throttle test on a FTE-500 turbine. This was in the model, which was on the ground- fortunately. The first indication was the bubbling of paint at the rear of the fuselage. I quickly shut off the manual fuel valve (Jet Cat type) and shot a few squirts of Halon down the tailpipe quickly extinguishing the fire. When I picked up the model about a liter of kero poured out the rear of the fuselage. I later removed the turbine and sent it in for checkout and/or repair. Note that this occurrence was with an early version of the ECU and I have not experienced any problems after software upgrades. I'm strongly in favor of monitoring every start with a Start Box/ Data Terminal and having a suitable extinguisher close by. A dedicated manual fuel shut off valve is also mandatory. Anyone else care to relate their experiences with on-board fires ?
Rgds,
Art ARRO