During DT found EMU 519/520 Air leak Tes ~~~~~ #1520 MPV air leak, replace o-ring ok. #2520 brake test point leak c/o #1519 -ok. #1519 bogie 2 service brake test point leak, c/o. 3519 A/side WFL joint leak, tighten-ok. #2519 LMRG test point leak-c/o okay. #1520 bogie 2 A/s test point leak c/o. Air leak test - 0.5b/5min Done by: Koh and Jack