2616 - BCU COMMS. FAULT ~~~~~ 2616 - BCU COMMS. FAULT.  2616 FC 308 (BCU Fault). D/L ER & found BCU no communication. Swapped BCU from #2615 to #2616 & installed new BCU at #2615. Security/function test brake pressure - OK. No residual pressure at COAST. Brakes able to release physically. Performed limited movement/depot shunting - OK. BCU S/N : (after swapped) #2616 : 1563112 #2615 : 1533235 (new) Faulty : 1533233 (OLD)  Kamal/Alan/Sarma/Anand/Lee PT/Sugu 45357