TC reported air-con fault at rear DT carset# 1. Unable to reset. Staff(OTP) checked and confirmed that car 3537 set #1 air-con faulty. Unable to reset . Car w aswarm ~~~~~ CHECKED #3537 AC 1-2 OBSERVE SIGN OF CHOKE.PURING/VACUMM DONE.RECHARGE FREON TO REQUIRE LP/HP, CCU CURRENT TO CRITERIA.MONITOR PRESSURE STABLE.CUT IN/OUT OK.CHECKED #2538 AC 2-1 SIGN OF SLOW LEAK AT LP DISTRIBUTION PIPE.RETIGHTEN DONE OK.RECHARGE FREON TO LP/HP,CCU CURRENT TO CRITERIA.MONITOR PRESSURE STABLE.CUT IN/OUT OK.AKHBAR/ZAHIR/ROSASNI 09.07.2024