DT check, 523/524 Air leak Fail 1 bar/5m ~~~~~ DT check, 523/524 Air leak Fail 1bar/5mi     Check & found having air leak on cars: #3523-test point leak-c/o ok. #1523-AS test pt bogie A sise leak-c/o ok. #2524-CR v/v leak-Tighten ok. #1524-Brake test pt bogie 2 & MPV leak-c/o and replace O-ring ok.And AS test pt B/S bogie 1 leak-c/o ok. Air leak test 0.57/5min. #3524-Cut in=8.4b,cut out=10.2b CT=1min22S. Air leak test-0.5b/5min. #3523-Cut in=8.6b,cut out=10.4b,CT=1min 26s. Air leak test-0.56/5min. Done by Sanip/Rizman/Koh. 13/05/22