2506 Found during DT check BCU fault FC ~~~~~ 2506 Found during DT check BCU fault FC - 308, 312, 330, 331.  2506 ER D/L & found FC 308/312/330/331. 2506 having stuck brake & replaced ACU. Brake pressure test & air leak test (0.5 bar/5 min) - OK (Refer to attached checklist). 2506 ACU S/N : OLD : 1019-219 NEW : 1240-099  Selvan/Alcus 44039