What was found
(CAN) SUBMITTER STATED IT APPEARED THAT A HIGH NUMBER OF GLOW PLUGS WERE BEING USED OVER A SHORT TIME FRAME. ONE PARTICULAR SET WAS REPLACED IN OCTOBER AND CHECKED IN FEBRUARY. ONE ELEMENT WAS NOTED AS COMPLETELY MISSING. ENGINE CHECKED AND METAL BUILD-UP FOUND ON TURBINE, STATOR AND SHROUD. IT WAS FINALLY DETERMINED THE GLOW PLUGS MUST BE STAYING ON THROUGH RELAY K7. RELAY REPLACED AND EVERYTHING NOW NORMAL. IT APPEARS THAT RELAY WAS CAUSING AN INTERMITTENT PROBLEM.