LTA, SMRT and SBS Transit provided a list of 15 recent key incidents for review.
Jul 1: TEL service disruption due to a signalling fault. Train services from Napier to Great World stations were affected.
Status: The disruption was due to a faulty computing unit in the signalling equipment housed in Orchard MRT station. The faulty component has been replaced.
Jul 3 and 19: Bukit Panjang LRT service disruption due to a power fault.
Status: A network switch in Bangkit station encountered an intermittent malfunction, resulting in loss of communication to the traction power system. This caused the power supply network to trip for safety reasons. The malfunctioning network switch has been replaced.
Jul 26: Bukit Panjang LRT service disruption due to a power fault affecting the Inner Loop (Service B).
Status: Caused by the train Current Collector Shoe (CCS) on one vehicle having poor contact with the power rail. The CCS has been realigned.
Aug 6: North-South Line (NSL), East-West Line (EWL) service delay due to a point fault after EWL Jurong East station (east bound).
Status: A track point fault caused the start of train services at Jurong East and Kranji stations to be delayed. Faulty cables have been replaced.
Aug 12: NEL service and Sengkang-Punggol LRT disruption due to a power fault.
Status: A faulty voltage transformer at the Sengkang Depot Intake substation resulted in a double fault, tripping out both primary and secondary protections. The voltage transformer has been replaced.
Aug 15: Sengkang-Punggol LRT service disruption due to a power fault.
Status: A power cable fault between Farmway and Kupang stations resulted in a power outage to the Sengkang-Punggol LRT.
Due to the earlier incident on Aug 12, Sengkang-Punggol LRT was operating on a single intake source from the Sengkang Depot intake substation. The power cable fault resulted in a power outage for the whole network. The power cable has been repaired, and all power cables have been checked.
Aug 28: Downtown Line disruption due to a point fault affecting services to Bukit Panjang to Beauty World stations.
Status: Due to a mechanical fault in a point machine between Bukit Panjang and Cashew stations (Expo bound). The mechanical fault has been rectified.
Sep 1: CCL service disruption due to a train fault affecting Marina Bay to Promenade stations.
Status: A train between Marina Bay and Bayfront stations stalled and required a haul out by another train. The fault was a result of cable insulation failure connected to an obstacle detector on the train. The cable has been replaced.
Sep 2: NSL service delay due to a train fault affecting Woodlands to Yishun stations.
Status: Signalling equipment on a train near Canberra station malfunctioned and stalled a train, which required a haul-out by another train. A faulty connector was replaced.
Sep 13: Sengkang-Punggol LRT (Punggol) service disruption due to a signalling fault.
Status: A faulty interface component on the signalling system limited the control of trains required for the start of service. The faulty component has been replaced.
Sep 14: NSL service delay due to a train door fault affecting Ang Mo Kio to Newton stations.
Status: Due to a train door fault, a train stalled at the north-bound track at Toa Payoh station (north bound), which required a haul out by another train. The faulty train door component has been replaced.
Sep 16: EWL service disruption due to a signalling fault affecting Aljunied to Tanah Merah stations.
Status: Signalling system lost power arising from a component failure within the Uninterruptible Power Supply system at Eunos station. The power has been restored.
Sep 17: TEL service disruption due to a signalling fault.
Status: The central signalling servers encountered a fault. This required the servers to be rebooted. During this period, the trains were operated manually, which resulted in additional travelling time. Further investigation is ongoing.
