The minimum fuel on landing in No.1 cell is at least how many pounds?

The minimum fuel on landing in No.1 cell is at least how many pounds?

• A. 50 lbs
• B. 9 lbs
• C. 22 lbs
• D. 40 lbs

Answer: (A)

The question tests the need for a safety reserve in a critical fuel cell. No.1 cell is considered a priority reserve, so even at the end of the approach you must still have enough fuel there to handle unexpected situations, like a go-around or a single-engine feed issue, without compromising the aircraft’s safety or its ability to reach a suitable landing or hold. Having at least 50 pounds in that cell provides a practical safety margin. It ensures fuel can be supplied to the engine if other tanks are depleted or if transfer paths are not immediately available, and it helps keep the overall fuel balance within acceptable limits during the landing phase. The smaller amounts (9, 22, or 40 pounds) wouldn’t reliably cover those contingencies, which is why they aren’t correct.

The question tests the need for a safety reserve in a critical fuel cell. No.1 cell is considered a priority reserve, so even at the end of the approach you must still have enough fuel there to handle unexpected situations, like a go-around or a single-engine feed issue, without compromising the aircraft’s safety or its ability to reach a suitable landing or hold.

Having at least 50 pounds in that cell provides a practical safety margin. It ensures fuel can be supplied to the engine if other tanks are depleted or if transfer paths are not immediately available, and it helps keep the overall fuel balance within acceptable limits during the landing phase. The smaller amounts (9, 22, or 40 pounds) wouldn’t reliably cover those contingencies, which is why they aren’t correct.