As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING TAXI WITH TILLER CENTERED NOSE STEERING PULLS AIRCRAFT LEFT. NO BRAKE NOTABLY DRAGGING. MAINTENANCE FOUND THE #2 MAIN LANDING GEAR BRAKE DRAGGING / LOCKED UP AND EXTREMELY HARD TO TURN. REPLACED BRAKE ASSEMBLY PER AMM 32-42-27 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.