1539 SNap reported Loud rattling noise. ~~~~~ 1539 SNap reported Loud rattling noise. Ce checked 1539 Bogie 1 wheel flat noise.     1539 A1/A2 found wheel flat(20mm x 5mm) & badly pitted. Notif 2379679 raised for wheel profiling.  Au TK 44688 Name                          : Au Tuck Kim Date of Occurrence            : 06/05/2022 Last Service Date             :   EMU / Equipment / Location    : 1539/Bogie 1/Axle 1 and 2 Equipment Serial No. (if any) :   Description of fault / cause  : A1 and A2 wheel pitted badly,                                    wheel flat 5x20mm causing wheel                                  noise ( Snaprep & confirmed WF                                   noise by CE )(CM01) Measurements (if any)         :   Required Rectification        : Required Servicing