ITS job was to check the “third rail” for any defects or abnormalities.
But SMRT’s Multi-Function Vehicle – which was activated on the morning of Dec 17 last year following the breakdowns two days earlier - ended up having problems itself.
Two maintenance officers were then deployed to manually check what had gone wrong.
They had to visually inspect about 900m of “third rail”, as well as manually feel all 150 claw supports and 60 fishplate joints, among other checks. Yet, they were done in 20 minutes, the Committee of Inquiry looking into last year's MRT disruptions heard on Wednesday (May 2).