As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A GRINDING SOUND WAS HEARD COMING FROM LANDING GEAR AREA DURING TAXI. MAINTENANCE FOUND THE NR 2 BRAKE ASSEMBLY DAMAGED DUE TO A SHEARED BOLT AND THE LT MLG INNER CYLINDER WAS CRACKED. THE LT MLG INNER CYLINDER WAS REMOVED AND REPLACED. IN ADDITION, THE NR 2 BRAKE, TIRE ASSEMBLY WERE REMOVED AND REPLACED.