As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL, F/O'S AIRSPEED INDICATOR STUCK AT 50 KIAS WITH CAPTAIN'S INDICATOR READING 70 KIAS. ABORTED TAKEOFF WITHOUT INCIDENT. PERFORMED PITOT STATIC CHECK, NO FAULT FOUND. REPLACED F/O'S AIR SPEED IND, SYSTEM OPS CHECKED GOOD IAW CH 34.