As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) REJECTED TAKEOFF DUE AIRSPEED INDICATOR NOT CROSS CHECKING BETWEEN CAPTAIN AND FIRST OFFICER. SPEED CROSS CHECK AT 80 KNOTS, CAPTAIN INDICATOR READ 0 WITH A FLAG, REJECTED AND TAXIED OFF RUNWAY WITHOUT INCIDENT. RESOLUTION LEFT MACH ASI REPLACED AND TESTED SERVICEABLE.REF AMM34-13-02-404-003. (TC# 20190718003)