TC reported after changing end, slight water dripping from aircon near A1 door. Staff (RFP) checked and confirmed slight dripping from aircon near A1 door. ~~~~~ TC reported after changing end, slight w Checked found #3707-#1 end with driplet of water coming out from ceiling panel.Suspect icing,drain pan related issue.OPS 20 raised to check #3707 a/c 1 AHU for icing,drain pan related issue. Checked by Kenneth  29/05/23 Check 3707 AC1 AHU for icing/drain pan leak #37070#1 AHU found AHU base at drain pan water leak out from insulation.Replace AHU #1 end and function test ok.Monitor ok no sign of water droplet. #3707-#1 AHU:- Old s/n: 634038 New s/o: 632328 Not: 2494959 raise to CSC Done by Zulq/Saini/Asruddin  05/06/23