What should be done first if a train loses power?

When a train loses power, the first action that should be taken is to communicate with the Service Train Operations (STO) via radio. This step is critical because the STO can provide immediate guidance and support, ensuring that the situation is assessed and managed effectively. By establishing communication, the conductor can report the specific details of the incident, such as location, number of passengers, and any immediate hazards, which allows for a coordinated response from the transportation organization.

Engaging the STO is essential for coordinating further actions, including notifying local authorities, arranging power restoration, or planning for a potential evacuation if necessary. This centralized communication process helps ensure that everyone involved is informed and responding appropriately to the situation.

The other choices are important in the overall response but are not the priority action. For instance, contacting local authorities is important for larger emergencies but should occur after the immediate communication with STO. Initiating passenger evacuation can only occur after assessing the situation with the STO’s guidance, as safety protocols must be followed. Checking emergency supplies is prudent, but this can be done after establishing communication and understanding the next steps.