Passenger feedback to staff (CLE) that the train was warm. TC confirmed no air-con fault. Staff (JUR ) checked the whole train and confirmed no air-con fault fou nd, but the front DT car was warm. All other cars were cooli ~~~~~ CHECKED #3654 AC 1-1,1-2.OBSERVED AC 1-1 SLIGHT SIGN OF LEAK AT VALVE CORE.RETIGHTEN AND CHARGE FREON TO REQUIRED LP/HP CRITERIA.CHECKED CCU CURRENT OK.CHECKED AC 2-1,2-2 OBSERVED ACB 2-2 SIGN OF SLOW LEAK AT    LIQUID DISTRIBUTION PIPE.RETIGHTEN CHARGE FREON TO REQUIRED LP/HP CRITERIA.CHECKED CCU CURRENT OK.MONITOR CUT IN/OUT OK.HAIRUL/AKHBAR 14.03.2023