As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TO ROLL THERE WERE NO AIRSPEED INDICATIONS ON THE LT OR RT PRIMARY FLIGHT DISPLAYS CAUSING RED AOA FLAGS TO DISPLAY. THE TO WAS ABORTED THE ACFT TAXIED BACK TO THE MAINTENANCE FACILITY. TROUBLESHOOTING FOUND BOTH LEFT AND RIGHT PITOT TUBES WERE BLOCK WITH DEBRIS. ACCOMPLISHED THE PITOT SYSTEM CONTAMINATION REMOVAL PROCEDURE IAW BD-100 MM 34-11-01.