What was found
ON TAKEOFF/POWER UP, THE RIGHT ENGINE BLEED DISCRETE LIGHT ILLUMINATED. THE LEFT & RIGHT ENGINE BLEED EICAS & MASTER CAUTION LIGHTS ILLUMINATED AND THERE WAS A SMELL OF SOMETHING BURNING. THE TAKEOFF WAS ABORTED AT A SPEED OF LESS THAN 60 KNOTS. THE AIRPLANE WAS REMOVED FROM SERVICE (GROUNDED) AND A TAKEOFF POWER ENGINE RUN WAS PERFORMED ON THE RIGHT ENGINE. NO FAULTS OR MESSAGES WERE DISPLAYED. THERE WAS NOT A BURNING SMELL DURING THE ENGINE RUN. THE DEFECTIVE RIGHT ENGINE HIGH PRESSURE CONTROLLER WAS REPLACED. THE CAUSE OF THE BURNING SMELL IS UNKNOWN.