If a COMM LOSS continues for more than 16 minutes and 30 seconds, would this be considered an en route failure concerning loss of emergency capability from the rear of the train?

If a COMM LOSS continues for more than 16 minutes and 30 seconds, would this be considered an en route failure concerning loss of emergency capability from the rear of the train?

• A. Not Enough Information
• B. Yes
• C. No
• D. Probably

Answer: (B)

Prolonged loss of emergency communication from the rear of the train is treated as an en route failure once a defined time threshold is exceeded. In this case, exceeding 16 minutes 30 seconds meets that criterion for en route failure concerning loss of emergency capability from the rear. The reason is that beyond this duration, the ability to coordinate with the rear-end crew and respond to emergencies is severely compromised, creating a safety risk during operation between locations. Therefore, this situation is classified as an en route failure.

Prolonged loss of emergency communication from the rear of the train is treated as an en route failure once a defined time threshold is exceeded. In this case, exceeding 16 minutes 30 seconds meets that criterion for en route failure concerning loss of emergency capability from the rear. The reason is that beyond this duration, the ability to coordinate with the rear-end crew and respond to emergencies is severely compromised, creating a safety risk during operation between locations. Therefore, this situation is classified as an en route failure.