What was found
WHILE TAXING TO GATE, ARRIVING, BRAKES WERE GRABBING AND RELEASING ALMOST UNCONTROLLABLY. MAINTENANCE PERFORMED A BITE CHECK ON BRAKE STEERING CONTROL UNIT (BSCU) 1 AND 2 AND FOUND NO FAULTS. RESET BSCU 1 AND 2 IAW AMM 32-42-00-810-912. BRAKING FUNCTIONS NORMAL DURING MAINTENANCE TAXI. NO GRABBING FELT IN A/C OR RUDDER PEDALS. SUBSEQUENT TROUBLESHOOTING REVEALED THAT ALL 4 BRAKES WERE BLED OF AIR IAW TROUBLE SHOOTING MANUAL AMM 32-42-00-810-912.