During train prep TC report 1557 Brake F ~~~~~ #1557 BRAKE FAULT FC 331,330,308,312.CHECKED DURING SHUNTING FAULT NOT DUPLICATE.AS THERE IS HISTORY OF ACU SWAPPING REPLACE #1557 ACU WITH GOOD CAR #1558 NEW SPARE INSTALL ON #1558.CONDUCT BRAKE TEST CHECKED ALL READING WITNIN CRITERIA.BRAKE RELEASE.HAIRUL/AZHAR 08.04.2023 ACU S/N #1558 1107/087 TO #1557 1024/033 NEW ACU S/N 1302/132 INSTALL TO #1558