511/512 Air leak test fail 0.9bar/5min. ~~~~~ 511/512 Air leak test fail 0.9bar/5min.     Fond #3511-A/S WFL hose air leak near elbow connector.Cut & trim the air hose and reconnected-ok. #1511 brake frame pipe line air leak-Tightened ok. #1511-A/S bogie 2 AS pipe line air leak-tightened ok. #1512-CR(PR) pipeline air leak-tightened ok. Air leak test 0.5bar/5min. Done by Saini/Koh/Asruddin. 02/05/21