During DT found EMU 511/512 Air leak tes ~~~~~ During DT found EMU 511/512 Air leak test fail, 1.2bar/5mins. To rectify.  Check and found 2512 parking brake test point air leak. Replace test point and function check ok. Air leak test 0.5/5min. Done by Yusof/Morgan/Ngieng 18.12.2023