Final answer:
When Crew Trac shows a crew member as AVL, it means they are available, not on duty. Consequently, the Flight Duty clock is not running, so the answer to the question is False.
Step-by-step explanation:
In the context of airline operations, Crew Trac is a system used to manage crew scheduling and assignments. When Crew Trac shows an individual as AVL, which stands for Available, it indicates that the crew member is available for assignment but is not currently assigned to a flight or duty. Therefore, when a crew member's status is AVL, the Flight Duty clock is not running. The Flight Duty clock refers to the period when a crew member is on duty for a flight, including pre-flight preparations, the flight itself, and post-flight duties. As such, the answer to the student's question is b) False, because the Flight Duty clock only starts when the crew member is actually on duty, not when they are merely available.