1613 Reported BCU fault and 2613 BCU com ~~~~~ To further rectify.  2613 ACU replaced with a new unit & a new stud. Function test & brake status check - OK. No leak was detected. #2613 ACU S/N : OLD : NEW : 1503/071  Azmi/Isam 44242 1613 Reported BCU fault and 2613 BCU com fault.  2613 ER D/L & found BCU faulty. Replaced BCU & wheel diameter setting for EMU 613 - Done. Function test & Brake cyclic test & found B1/B2/B3 brake pressure high. OPS 20 raised to follow-up. #1613 ER D/L & swopped #1613 BCU to #1614. Function test & brake cyclic test - OK. #2613 BCU S/N : OLD : 15-17-170 NEW : 18-30-131  Sarma/Anand 44241 To continue rectification on 2613.  2613 ACU unable to remove due to nut seized to stud. OPS 30 raised to further rectify.  Nelson 44241