Train stopped with stuck brake indication at rear M1 arriving CTH2. STBS operated. Pax disembarked a t CTH. ~~~~~ Check and found #1527 having stuck brake. Fault code: 308/328/329/330/331. During coasting found #1527 BCP at 2.9 bar. Check ACU heavy air leak at solenoid v/v. Replaced ACU and function test ok. ACU-Old s/n: 1302-127  New s/n: 1008-066. Not: 2157498 raised to RSW. Done by Sanip/Fauzi  05/05/20.