What was found
AFTER LANDING AND DURING TAXI BOTH BRAKES HAD EXCESSIVE CHATTER, MAKING STOPPING DIFFICULT. TROUBLESHOOTING PER TSM REF 32-42-00. TAXI CHECKED AIRCRAFT AND CONFIRMED FAULT. ACC ANTI-SKID/AUTOBRAKE CONTROL TEST PER MM REF 32-42-00. CHECKS GOOD. ACC XDUCER TEST PER MM REF 32-42-00. CHECKS GOOD. REPLACED BOTH #1 AND #2 BRAKE ASSEMBLY PER MM REF 32-41-41. OPERATIONS AND LEAK CHECKS GOOD. TAXI CHECKED AIRCRAFT, CHECKS GOOD, OK FOR SERVICE. THIS SDR IS FOR THE #1 BRAKE ASSEMBLY. AIRCRAFT WAS GROUNDED.