EE WERE WORKING ON THE INSTALLATION OF A FLUID COUPLING. THE ELECTRIC DRIVE MOTOR WAS STARTED ONCE TO DETERMINE IF THERE WAS ANY MECHANICAL PROBLEM. WHEN THE DRIVE WAS STARTED A SECOND TIME FO R OBSERVATION/INSPEC. THE FLUID COUPLING HEATER SENSTIVE BLOW OUT PLUGS BLEW RELEASING DEXTRON#3TRANSMISSION FLUID INTO THE ATOMSPHERE AND FLUIDWAS INGINITED BY A PROPANE HEATER CAUSING A FIR