As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THE BRAKES DIDN'T RELEASE FOR PUSHBACK. MAINTENANCE FOUND NR 4 MAIN WHEEL NOT SPINNING FREELY. MAINTENANCE REMOVED THE NR 4 WHEEL, FREED UP THE BRAKE ROTORS AND THEN RE-INSTALLED NR 4 MAIN WHEEL. THE BRAKES THEN OPERATED NORMALLY, OPS CHECK GOOD PER EMB AMM 32-49-05.