What was found
MLG BRAKE PRESSURE: ON TAXI OUT BOTH BRAKES WERE SHUDDERING WHEN APPLIED. AND WOULD RATTLE THE WHOLE AIRCRAFT. THIS HAPPENED WHEN APPLYING BOTH BRAKES OR EACH BRAKE INDEPENDENTLY.//CORRECTIVE ACTION//PERFORMED BRAKE ASSEMBLY GENERAL VISUAL INSPECTION AND NLG AND MLG TIRES GENERAL VISUAL INSPECTION IN ACCORDANCE WITH EMBRAER 5058 AMM 32-45-21-21-802-A AND 32-45-00-210-801-A. NO DISCREPANCIES NOTED. PERFORMED NORMAL BRAKE AND EMERGENCY/PARKING-BRAKE SYSTEMS - BLEEDING IN ACCORDANCE WITH EMBRAER 5058 AMM MPP 32-40-00-870-801-A. PERFORMED BRAKE SYSTEM FUNCTIONAL CHECK. NO DISCREPANCIES NOTED