2558 BCU fault ~~~~~ 2558 BCU fault     #2558-FC show 308/312/330/331.Brake cyclic test ACU no sign of leak or hunting.ACU sign off slow release.Replace ACU spare,brake cyclic brake stuck at 2.98 bar when at coast.Replace another ACU brake cyclic test ok.BCP within criteria.ACU no sign of air leak or hunting. ACU-New s/n: 1037-048  Old s/n: 1032-043 Not: 2257466 raise to rsw. ACU-New s/n: 1008-002  Old s/n: 1037-048 Not: 2257467 raise to rsw. Done by Zulq/Asruddin/Haikel  16/03/21