If the bi-directional XFLOW pump fails to turn on when the fuel imbalance reaches 200 lbs, which remedy is allowed?

• A. Must select gravity XFLOW
• B. Can use MAN XFLOW as well
• C. No remedy available
• D. Only gravity works

Answer: (B)

The main idea is that there is a built-in backup way to move fuel between wings when the automatic crossfeed pump doesn’t start. The manual crossflow pump is designed exactly for this situation, so you’re allowed to switch to it to restore balance if the bi-directional XFLOW pump fails to energize. Using the manual XFLOW lets you actively transfer fuel between tanks to eliminate the imbalance and keep engine feeds safe.

Gravity crossflow isn’t the standard remedy in this scenario because it relies on gravity head and valve positions, and it’s not the designed, reliable backup you use during flight. Saying there’s no remedy ignores the approved manual crossflow option, and insisting that only gravity works contradicts the established backup procedure.