Wheel slip/slide (dry track) light was steadilyTrain was not jerky. Rear T320line clear and conf irmed no wheel slip/slide or any abnormalities. Wheel slip/s lide (dry track) light was steadilyTrain was not jerky. Re ~~~~~ * ,N * 3686 (FC-327) BCU speed probe #4 faulty. Checked and found axle #4 tacho gen high impedance and fluctuating. Replaced #4 tacho gen and function tested - ok. Depot shunt - ok, no W/S/S. DONE BY:KUMAR/HISHAM/FAIRUZ 19.05.2024