VPRO received feedback - car 1686 of T311, when travelling from BDK to QUE WB, experienced strong je rk.dback train experienced slight jerky when train was braking. ~~~~~ ER downloaded and LDC log requested.

- Checked found 1686-A1 CCD fuse blown.
Replaced.
1686- traction motor megging tst passphysicel check
TM 1/4 condition ok.
-Checked main switch box condition ok.
all cars brake able to release when coasting.carryout No power test pass.Carryout depot shunt okay no jerky.on 1686.

-1686 brake resistor check no abnormality
as well as filter reactor.ok.


follow up
1-shortloop train to TWD to travel affected station
2-CE to board train.