What action should be taken if the fuel pressure drops below the normal range?

• A. Continue the flight
• B. Shutdown the engine
• C. Monitor the indicators
• D. Switch to a backup fuel system

Answer: (B)

When fuel pressure drops below the normal range, shutting down the engine is the appropriate action to ensure safety and prevent potential damage. Low fuel pressure could indicate inadequate fuel supply to the engine, which could lead to engine performance issues or failure. By shutting down the engine, the pilot can avoid a situation where the engine stutters or fails completely, which can lead to dangerous scenarios in flight.

It's essential to take immediate action in response to critical engine parameters like fuel pressure, as flying under such conditions can increase the risk of engine failure. Continuing the flight or merely monitoring the indicators could exacerbate the issue. Switching to a backup fuel system might not be applicable or could potentially complicate matters if the primary system's failure is a symptom of a larger issue. Therefore, shutting down the engine prioritizes the safety of the crew and the aircraft.