If a Dispatcher adds incorrect information to a previously issued Form D, what steps must they follow?

When a Dispatcher realizes that incorrect information has been added to a previously issued Form D, the appropriate course of action is to correctly recopy the Form D, ensuring that all necessary and accurate information is included, and then void the erroneous copy. This process maintains clear and accurate documentation, which is paramount in railway operations for safety and compliance.

By recopying the Form D, the Dispatcher provides the train crew with a definitive and clear directive that can be relied upon. Voiding the erroneous copy helps to eliminate any confusion that may arise from having multiple versions of the form in circulation. This procedure ensures that everyone involved has the most up-to-date and correct information, which is essential for the safe and efficient operation of trains.

The other options may not adhere to best practices in railway operations. For instance, simply informing the crew of the correct information without a formal voiding and recopying process could lead to misunderstandings or miscommunications, putting operations at risk.