In the event of a System Operator being absent, what contingency plan should be in place?

A designated backup operator should be assigned to take over responsibilities in the event of the primary System Operator's absence. This approach ensures that there is continuity in operations and that communication capabilities remain intact during such times. Having a backup operator trained and prepared to step in helps mitigate risks associated with the potential delay or disruption of critical communication in emergency situations.

Additionally, assigning a backup operator aligns with best practices in emergency management and communication systems, where readiness and resilience are essential. The contingency plan allows for a seamless transition of responsibilities and maintains the efficiency of the one-way voice communication system, which is especially vital during emergencies when effective communication can significantly impact safety and operational success.