Pax feedback to staff(YCK) unusual soundheard from undercarriage. Staff(BSH) checked and confirmed no abnormalities heard. Pax feedback to staff(YCK) unusual s ound heard from undercarriage. Staff(BSH) checked and confir ~~~~~ 3518 Pax feedback to staff(YCK) unusual sound heard from undercarriage. Staff(BSH) checked and confirmed no abnormalities heard. CE : 3518 bogie 2 Slight wheel flat noise Acceptable.  3518 bogie 2 found thermal crack & spalling all around wheels. Notif (2620404) raised for wheel profilling.  Irwan 45497 Notif 2620404 Name                              : ELFYAN Date    Of    Occurrence          : 24/07/2024 EMU/Equipment/Location            : 517/518 / Wheel / Bogie 2 Description Of Fault/Cause        : Thermal crack & Spalling all                                     around wheels Required   Rectification          : Require Wheel Profiling