As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4134, DURING TAKEOFF ROLL, CREW REPORTED LT AIRSPEED INDICATOR FAILED TO RESPOND NORMALLY. TAKEOFF ABORTED AND AIRCRAFT RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. INSPECTED LEFT PITOT SYSTEM, TURNED ON PITOT HEAT AND DRAINED SYSTEM. PERFORMED OPERATIONAL CHECK IAW BAE MM 34-11-00. AIRCRAFT RETURNED TO SERVICE.