Train stopped with stuck brake indication at car 2679 after departing RFP. STBS operated. Pax disemb arked at TPG. ~~~~~ 3679 came to a gradual stop in AM with stuck brake at 2679. L3 Fault recurred in ATPM. STBS was operated for train to proceed to TPG WB to disembarked pax. IMDC(RS) and LTOC were informed. (sent at 19:12 19-Aug-2023) L3 2679 FC BCU Comm Fault. ER showed BCP no reading on #2679. Checked in depot, #2679 having physical stuck brake. Replaced #2679 BCU & fault cleared. Brake cyclic test & brake pressure were within criteria. Checked ACU, ACU/BCU connections & BRKB - OK, no abnormalities.  Lee JC 45158