As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL, THE CREW NOTICED THE FO`S AIRSPEED INDICATOR WENT FROM INDICATING 0 KNOTS TO 55 KNOTS WHEN THE PILOT`S GAUGE INDICATED 75 KNOTS. THE CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MX INSPECTED THE SYSTEM AND REPLACED THE FO`S AIRSPEED INDICATOR AND RETURNED THE AC TO SERVICE WITH NO FURTHER DEFECTS. (K)