545/546 - REPORTED BCU FAULT DURING TRAI ~~~~~ 545/546 - REPORTED BCU FAULT DURING TRAIN PREP.  2546 ER D/L & found FC 330/331. Brake status check & brake pressure test - OK. All brakes able to release fully during COAST & no BCU fault. Dump v/v test - OK. As preventive measure, replaced BCU & function test - OK. Train limited movement/depot shunting - OK.  Chan GF/Alan/Shafie 44384 #2546 BCU S/N : OLD : 1833205 NEW : 1811090