As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NR 1 ASI FAILED TO REGISTER UP TO 70 KTS, REJECTED TAKEOFF COMPLETED. AFTER REJECTED TAKEOFF, AIRCRAFT RETURNED TO STAND FOR INVESTIGATION. ENGINEER CLEARED PITOT HEAD AND REPORTED, EXCESSIVE WATER APPARENT IN TUBE. AIRCRAFT WAS PARKED OVERNIGHT IN HEAVY RAIN AND THIS WAS THE FIRST FLIGHT OF THE DAY.