A metal layer fell on a track in an incident in 2025, prompting an inspection of tunnel doors. This inspection has now been completed by SMRT.

The company is taking further action, working with the LTA to carry out renewal works on these doors. This effort is focused on older MRT lines, where the need for renewal is particularly pressing.

Further details on the incident and the ongoing renewal works are available from the source. SMRT and LTA are collaborating to ensure the necessary work is done, particularly on the older lines that require attention.