The FUEL 1 LOW and FUEL 2 LOW cautions appear when?

The FUEL 1 LOW and FUEL 2 LOW cautions appear when?

• A. Approximately 172 lbs of fuel remain in the tank
• B. Approximately 150 lbs
• C. Approximately 90 lbs
• D. Approximately 200 lbs

Answer: (A)

Each wing tank has its own low-fuel warning. The FUEL 1 LOW and FUEL 2 LOW cautions come on when the remaining usable fuel in that specific tank is about 172 pounds. This per-tank threshold gives you early notice to switch tanks, use crossfeed, or plan a divert/refuel before you get critically low. That 172-pound figure translates to roughly 25 gallons per tank, depending on fuel density. Other numbers don’t match the published per-tank warning limit, so they aren’t the trigger for these cautions.

Each wing tank has its own low-fuel warning. The FUEL 1 LOW and FUEL 2 LOW cautions come on when the remaining usable fuel in that specific tank is about 172 pounds. This per-tank threshold gives you early notice to switch tanks, use crossfeed, or plan a divert/refuel before you get critically low. That 172-pound figure translates to roughly 25 gallons per tank, depending on fuel density.

Other numbers don’t match the published per-tank warning limit, so they aren’t the trigger for these cautions.