EE'S SUPERVISOR STARTED LOOKING FOR HIM WHEN HE GOT NO RESPONSE FROM THE EE WHEN CALLED ON PLANT RADIO. HE FOUND HIS FRONT END LOADER AT THE BASE OF THE CLINKER SILO SO HE WENT TO THE TOP OF T HE SILO WHERE THE EE COULD BE TAKING MEASUREMENTS. HE CLIMBED DOWN A LADDER TO CLINKER BELT WALKWAY, HE COULD SEE THE EE W/HIS RT.ARM OVER THE TOP HANDRAIL, SLUMPED OVER, HEAD DOWN.CALLED HEL