During DT check found EMU 517/518 Air le ~~~~~ During DT check found EMU 517/518 Air le     Found #2517-MPV heavy leak.Replace MPV ok.No leak found.Conduct both cab cut in/out wothin criteria.Air leak test 0.5bar/5min. MPV:- Old s/n: 10-11-255 New s/n: 10-15-262 Not: 2493321 raise to CSC. Done by Haslan/Zulq.  31/05/23