DT561: UNDERSHOOTATS LOG: TAP2, 1905HRS, 2942 KTB1, 2007HRS, 2288 CCK1, 2034HRS, 2239 ~~~~~ 3561 reported UNDERSHOOT TAP2, 1905HRS, 2942 KTB1, 2007HRS, 2288 CCK1, 2034HRS, 2239  561/562 ER D/L & no abnormal fault or any FC found. Cyclic test & dump v/v test - OK. Put to COAST & physically checked the brakes condition. Found #3561 A3 brake unable to release when parking brake mechanical release handle was pulled. Notif 2395182 raised & transfer request for Tread Brake Unit replacement.  Abdillah/Irwan/Haziq 44742 Name                              : JING CONG Date    Of    Occurrence          : 30/06/22 Last    Service    Date           :      EMU/Equipment/Location            : 3561 / TBU / A3 Equipment Serial No. (if  any)    :   Description Of Fault/Cause        : BRAKE NOT RELEASED WHEN                                          COASTING AND WHEN PARKING                                        BRAKE RELEASE HANDLE PULLED Measurements    ( if  any )       :   Required   Rectification          : Required TBU CHANGEOUT