Questions over train defects

A train operated by SMRT leaves the Ang Mo Kio station on July 7.
A train operated by SMRT leaves the Ang Mo Kio station on July 7.PHOTO: EPA

I read with alarm that 26 SMRT trains are being sent back to China for repair ("Hairline cracks in 26 MRT trains made in China"; July 6).

There are questions that remain unanswered.

Why was this entire incident kept under wraps until now?

Why will it take till 2019 for the repairs to be completed? That seems like a long timeframe.

I hope the Transport Ministry and Land Transport Authority can offer some answers.

Seah Yam Meng