As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AS THE CREW WERE ABOUT TO REACH TAKEOFF ROLL, THE CREW NOTICED THAT ONE ENGINE LOW PRESSURE COMPRESSOR SPEED WAS IN THE RED. TAKEOFF WAS ABORTED AND AIRCRAFT TAXIED BACK TO HANGAR. MECHANICS ARE PROCEEDING TO BORESCOPE THE ENGINE.