As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FO AIRSPEED REMAINS AT ZERO DURING TAKEOFF ROLL. ON TAKEOFF ROLL SPS ADV MESSAGE ON EICAS. ABORTED TAKEOFF TWICE. PERFORMED ADC 1 AND ADC 2 LEAK CHECK IAW AMM 34-13-00-790-802-A MULTIPLE TIMES. NO DEFECTS NOTED. AIRSPEED AND ALT INDICATIONS CHECKED GOOD ON PFD 1 AND 2 USING BOTH ADCS COULD NOT DUPLICATE DISCREPACY ACFT GOOD FOR SERVICE