505/506 Air leak test fail 1bar/5min (DT ~~~~~ 505/506 Air leak test fail 1bar/5min (DT cx)     Checked found EMU505/506 4 nos test point with obvious leakage. Location at 3505 Bogie 1 and 3, 2505 Bogie 1, 2506 Bogie 2. Replaced and function tested with soap satis. Air leak test improved to 0.4/5min. Done by Shah, Fazil, Rosli. 27/7/2023