Mandurah and Yanchep Lines Service Disruption Effective Immediately Sun 12 Jul Sunday 12 July 2026 at 8:41 AMTrains on the Mandurah Line are cancelled between Perth Underground and Cockburn Central due to a technical issue.This is also causing delays on the Yanchep Line.Train replacement buses are running between Perth Underground and Cockburn Central. Please allow extra travelling time and be aware that replacement buses may not connect with timetabled bus and train services.Alternatively there may be a timetabled service that will help you get where you are going.Check the list of alternative bus routes or use the JourneyPlanner to plan your journey.If you require assistance regarding service disruptions or planning your journey, please call the Transperth InfoLine on 13 62 13 (TIS: 13 14 50). Hearing or speech impaired? Call via NRS 133 677 and ask for 13 62 13.