When a train experiences a cab signal failure in 562 territory, what must the Engineer do regarding the failed apparatus?

When a train experiences a cab signal failure in 562 territory, the Engineer must consider the failed apparatus inoperative until it is fixed and tested. This approach is essential for maintaining safety protocols and ensuring that the train operation remains within the guidelines established for signal failures.

By treating the inoperative cab signal as failed, the Engineer can take appropriate action to mitigate any risks associated with operating under potentially misleading or unclear signal indications. This means that the Engineer will need to follow procedures that may include reducing speed, relying solely on visual signals or other forms of communication, and ensuring that safety is prioritized until the equipment can be restored to normal operating condition.

The other options do not align with safety practices. Operating at normal speeds until the next check ignores the critical safety implications of a signal failure. Reporting the issue at the next station may delay necessary action and could lead to unsafe conditions during transit. Ignoring the failure if signals are clear fundamentally contradicts the requirement to treat any signaling apparatus as inoperative until verified, compromising safety. Thus, recognizing the cab signal failure as inoperative is crucial for ensuring safe train operations.