How must an RCO crew verify that the PSP system is operational?

To confirm that the PSP (Personal Safety Protection) system is operational, the RCO crew should look for the message "Pullback on" on the status screen. This specific message serves as a direct indicator that the system is active and functioning properly. It confirms not only that the system is powered on but also that it is communicating effectively with the other components involved in the operation, ensuring a safe environment for all personnel involved.

Checking the status light may provide some indication of power, but it does not give a comprehensive confirmation of the system's operational status. Inspecting the equipment can identify physical issues, but it does not verify that the system is functioning as intended in real-time. Listening for an alarm sound might alert crew members to a problem, but it is not a guaranteed method of confirming operational status. Thus, the message on the status screen is the most definitive method for the RCO crew to verify that the PSP system is operational.