What was found
BRAKES AUTOBRAKE FAULT ECAM MESSAGE WITH CORELATED CFDS MESSAGE BRK NORM SERVOVLV1(15GG)MUST REPLACE NORMAL BRAKE SERVO VALVE 15GG PLEASE FOLLOW TSM 32-42-00-810-805-A UNLOCKING TO FLAG SDR FLAGGING FOR SDR FOUND 15GG CLASS 1 AND FAULT 41 ON T/S DATA FOLLOWING TEST OF BSCU 2 REF TSM 32-42-00-810-805-A. NEXT STEP TO CHANGE 15GG. WHILE TROUBLESHOOTING, RESET BSCU 1 AND 2 WHICH CAUSED 15GG FAULT TO CLEAR BUT NEW ERONIOUS FAULTS TO OCCUR ON BSCU 1. DUE TO INCONSTINCY OF FAULTS STEMMING FROM BSCU, REMOVED AND REPLACED BSCU PRECATIONARY REF 32-42-34/401 CONFIG 00. BSCU CHECKS GOOD, 15GG STILL REQUIRES REPLACEMENT. PARTS USED: 31-3242-9-0001,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1662999 SN OFF 6564 UNIT, BRAKE STE OFF 31-3242-9-0001 6564 ON 31-3242-9-0001 6783 REMOVED AND REPLACED 15GG NORMAL BRAKE SERVO VALVE REF TSM 32-42-00-810-805-A. BITE CHECK AND LEAK CHECK GOOD. FUNCTIONAL TEST OF THE TACHOMETER STILL NEEDS TO BE COMPLETED SEE AMM 32-42-48-400-001-A STEP G(2) FOR TACHOMETER FUNCTIONAL TEST. SPIN UP TEST, REF AMM 32-42-00 AND FINALIZATION OF BRAKE SERVO VALVE REPLACEMENT FOR #1 BRAKE, REF AMM 32-42-4TIME.