As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: #1 BRAKE GOT EXTREMELY HOT COMPARED TO #2, 3, AND 4 WHILE TAXING SLOW. BRAKE WAS STICKING AND PULLING TO LEFT IN JAC, TEMPERATURE GOT AS HIGH AS 550 DEGREES WHILE OTHERS WERE MID 200'S. MAINTENANCE REPLACED #1 MAIN LANDING GEAR BRAKE PER AMM 32-42-27.