TC reported suspected wheel flat at car3625. Train performance - ok. No jerkiness. TC reported susp ected wheel flat at car 3625. Train performance - ok. No jer kiness. ~~~~~ 3625 TC reported suspected wheel flat. Train performance - ok. No jerkiness. CE checked & found 3625 bogie #1 wheel flat noise.  3625 bogie #1 checked/found no wheel flat. 3625 A2/B1/B2 wheels having circumferential shelled thread. Notif 2455324 raised for wheel profiling.  Khairul 44948 Notif 2455324 Name                              : KHAIRUL Date    Of    Occurrence          : 22/01/2023 Last    Service    Date           :   EMU/Equipment/Location            : 625/626 / Wheel / Bogie 1 Equipment Serial No. (if  any)    :   Description Of Fault/Cause        : 3625 Bogie 1 (A2 , B1, B2                                        Shell thread circumference) Measurements    ( if  any )       :   Required   Rectification          : Require Wheel Profiling