Pax feedback to staff(AMK) while travelling at Front M1 car, the ride was shaky. Requested staff(CTH ) to check and feedback no abnormalities experienced, all isclear. ~~~~~ 3506 Pax feedback to staff(AMK) while travelling at Front M1(1506) car, the ride was shaky. Requested staff(CTH) to check and feedback no abnormalities experienced, all is clear. CE : 1506 bogie 2 bad wheel flat noise.  1506 bogie 2 found wheel flat on A4 wheel. measurement   100mm X 200mm, the wheel groove depth on B3 is 0.2mm. Raise Notification for Wheel profiling (Notif. No 2602837).  Aliff/Redzwan 45441 Notif 2602837 Name                          :Redzwan / Aliff Date of Occurrence            :28.05.24 EMU / Equipment / Location    :1506 / Wheel / A4,B3 Equipment Serial No. (if any) :  Description of fault / cause  :A4 Wheel Flat                                B3 Wheel Groove Measurements (if any)         :Wheel Flat - 100mm x 200mm                                Wheel Groove - Depth 0.2mm Required Rectification        :Wheel Profiling