Following an incident in 2025 where a metal layer fell onto the tracks from a tunnel door, SMRT has completed a full inspection of similar doors throughout the network. The incident prompted a collaborative effort with the Land Transport Authority (LTA) to assess the condition of these doors, particularly those on older MRT lines. Currently, SMRT and LTA are proceeding with renewal works to address potential safety concerns and prevent future occurrences. These renewal efforts focus on enhancing the durability and integrity of the tunnel doors. The agencies are prioritizing upgrades on the older lines where wear and tear are more prevalent. This inspection and subsequent work demonstrate a commitment to maintaining passenger safety and a reliable public transportation system. Further details regarding the scope and timeline of the renewal works will be announced as they become available.