1504 A/C 1-1 Coolant fault ~~~~~ 1504 A/C 1-1 Coolant fault.  1504 FC 518. Checked 1504 A/c 1-1 & found oil stain at bottom of CCU. Open all access covers. Charged in freon but unable to identify leaking spot. Notif 2177617 raised to RSW to C/o CCU. Name                          : UPD Support Team Date of Occurrence            : 08/07/2020 Last Service Date             :   EMU / Equipment / Location    : 1504 / Aircon 1-1 Equipment Serial No. (if any) :   Description of fault / cause  : CCU Oil leak Measurements (if any)         :   Required Rectification        : Required Servicing  Chan GF. 08/07/2020.