As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LINED UP AIRCRAFT ON 27R, ENGINES STABILIZED AT 40% N1, RELEASE BRAKES AND ACFT IMMEDIATELY PULLS HARD RIGHT 30-35. ABORTED TAKE OFF AND TAXIED BACK TO GATE. GROUND SPEED LESS THAN 20 KNOTS. F/O APPLIED FULL LEFT RUDDER CAPT USED LEFT TILLER INPUTS TO KEEP AIRCRAFT FROM DEPARTING RUNWAY. REMOVED AND REPLACED RT BRAKE METERING VALVE ASSY IAW AMM 32-41-31. OPS AND LEAK CHECKED GOOD.