Train encountered power fault at car 2542 Rear M2. Reset at NOV. Fault clear. Train encountered powe r fault at car 2542 Rear M2. Reset at NOV. Fault clear. ~~~~~ Train encountered power fault at car 2542 Rear M2. Reset at NOV. Fault clear. 2542 power fault X 3 CE 2542,no power fault recurrence during monitoring. Train performance ok.  Car 2542 FC 141 - Propulsion K Failure. Checked inverter 1,2 and BCH ok. CCD fuse checked ok. Replaced K contactor. Powering tests ok. Limited movement and depot shunting ok. Old S/N: 10270827103 New S/N: 10270846102 Notification: 2590294 Done by: Jack/Koh/Rizman 19.4.24