A comm loss lasts longer than 16 minutes and 30 seconds and results in an en route failure of emergency capability from the rear. What is the resulting failure category?

A comm loss lasts longer than 16 minutes and 30 seconds and results in an en route failure of emergency capability from the rear. What is the resulting failure category?

• A. Brake system failure
• B. En route failure of emergency capability from the rear
• C. Lead unit control issue
• D. Communication network fault

Answer: (B)

Prolonged communication loss beyond the specified threshold combined with the loss of emergency capability from the rear describes a situation where, during flight, the rear unit can no longer provide emergency support. This exact impact is what defines the failure category: an en route failure of emergency capability from the rear. The other options describe different faults (brake hardware, lead-unit control, or a generic network fault) that don’t capture the specific in-flight consequence described here.

Prolonged communication loss beyond the specified threshold combined with the loss of emergency capability from the rear describes a situation where, during flight, the rear unit can no longer provide emergency support. This exact impact is what defines the failure category: an en route failure of emergency capability from the rear. The other options describe different faults (brake hardware, lead-unit control, or a generic network fault) that don’t capture the specific in-flight consequence described here.