WHAT HAPPENED
At about 9am on Wednesday, a faulty first-generation Kawasaki Heavy Industries train that has been in service for more than 35 years was returning to Ulu Pandan Depot when its axle box dislodged and dropped, said SMRT and LTA.
This caused one bogie - or an undercarriage with wheels - to come off the running rail between Dover and Clementi stations.
In turn, this severely damaged the track and track equipment, with 34 rail breaks across 1.6km of westbound tracks between Clementi and Dover stations.
Three machines that are used to divert trains to different tracks, a third rail that supplies power, as well as power cables and rail clips were also damaged.
The authorities said that all the Kawasaki Heavy Industries trains running on Thursday have passed the axle box functionality checks.
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