As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 9 RDU - BOS, ON TAKEOFF AT APPROX 75 KTS HAD LIFT DUMPER FAULT ON LEFT MFDU. ABORTED TAKEOFF AND RETURNED TO GATE. PERFORMED OPS CHECK OF PSEU, NO FAULT NOTED. LIFT DUMPERS CHECKED GOOD IAW AMM 31-41-01. REMOVED AND REPLACED NR 4 WHEEL SPEED TRANSDUCER. OPS CHECK GOOD IAW AMM 32-45-02.