As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: GROUND CREW REPORTED SMOKE COMING FROM NUMBER 1 MAIN LANDING GEAR BRAKE. FOUND FLUID LEAKAGE FROM BRAKE ASSEMBLY. REMOVED AND REPLACED #1 BRAKE IAW AMM 32-41-41-401. BRAKE OPS CHECKS NORMAL WITH NO LEAKS NOTED. A/C OK FOR SERVICE.