DT523 UNDERSHOOT FER RSD TO CHECK ON BRAKE BLENDING. EARED ON SIGNAL SIDE ~~~~~ DT523 UNDERSHOOT   Checked TIMS found FC: 323 occured multiple times for #1524. Downloaded ER, found #1524 WSP trigger always when train coming to a stop. Checked tacho and conducted brake static test ok. Replaced BCU and set WDC. Security check ok. Limited movement multiple times ok. To be further monitored on the mainline. Notification to CSC: 2519041 Done by: Saini, Asruddin, Haslan (28.8.23)