503/504 DT Check found Air leak test fai ~~~~~ 503/504 DT Check found Air leak test fai     Check and found multiple carhaving test point air leak badly.Test point c/o done.Further check found #3503 water tank side glass bottom nut broken and cause air leak.Temporary isolated with tag and awaiting for spare.Air comp. cut in-8.4bar and cut out-10.35bar ,charging time-2min 22sec,Air leak test 0.5bar/5min. Done by Deeshan/Sanip/Koh/Faddzal. 16/03/21