3515 no.1 end water leaking from RAD ~~~~~ Check the above mention reported due to suspect drainage chock.Vacuum /purging drainage pipes,clean drainage tray done.Water test from roof (hatch and filter cover)ok.Check any water seepage or wet stain on relay panel-ok.Monitor for few hours ok and water flow on drain pipe smoothly. Done by Saini/Haslan/Haikel. 26/08/21