1567-BRAKE FAULT DURING TRAAIN PREP. ~~~~~ 1567-BRAKE FAULT DURING TRAAIN PREP.  1567 Replaced ACU Unit. Security & air leak checked - OK. Conducted brake cyclic test - OK. No brake fault indication. Coasting able to achieved zero. O: 1302/132 N: 1037/055 Irwan/Aiman 44951