What was found
AIRCRAFT WAS GROUNDED: ABORTED TAKEOFF AT 80 KNOTS DUE TO BRAKES RELEASED ECAM MESSAGE. SAFELY RETURNED TO GATE. **SUPPLEMENTAL REPORT FOR AALA202201318680: ACCOMPLISHED TSM 32-42-00-810-815. CONFIRMED RIGHT HAND MLG, 2M AXILE HARNESS SHORT TO SHIELD CAUSING LOSS OF TACHOMETER 4 SIGNAL TO BRAKE AND STEERING CONTROL UNIT (BSCU). REPLACED HARNESS (AALA202201318680) PER AMM 32-11-43. REPLACED UNSERVICEABLE RECEPTACLE LGAB4-4 (AALA202201317638) PER ESPM 20-44-11 AND AWM 32-11-02. ACCOMPLISHED SATISFACTORY ELECTRICAL TEST BETWEEN BSCU AND TACHOMETER 4. ACCOMPLISHED SATISFACTORY LMP GROUND CONFIDENCE CHECK. ACCOMPLISHED SATISFACTORY NORMAL BRAKE OPERATION, TACHOMETER FUNCTIONAL TEST, AND BSCU BITE CHECK PER AMM 32-42-00 AND AMM 32-46-00. ACCOMPLISHED SATISFACTORY BRAKE TEMPERATURE OPERATION CHECK PER AMM 32-47-00.** (CLOSED)