As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6253 - IAD-ABE - DURING TAXI, AIRCRAFT RETURNED TO GATE DUE TO ABNORMAL NOISE FROM BRAKES. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED RT MAIN BRAKE ASSY, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)