What is one potential consequence of misfueling an aircraft?

Misfueling an aircraft can lead to significant safety issues, one of the most serious being potential engine failure. This occurs when the wrong type of fuel is used, which may not have the proper properties needed for the engine to function correctly. For example, using aviation gasoline in a turbine engine or using jet fuel in a piston engine can disrupt the combustion process and cause the engine to fail.

Inadequate combustion can result in a loss of power, which is critical during various phases of flight, especially during takeoff and landing. This kind of failure can lead to emergencies that may require immediate action from the pilot to either troubleshoot the issue or prepare for an emergency landing.

The other choices, such as increased speed or enhanced fuel efficiency, are not valid outcomes of misfueling. In fact, misfueling is more likely to have adverse effects on performance and safety rather than beneficial ones. Similarly, reduced maintenance costs are unlikely because the consequences of misfueling often lead to additional repair needs and unplanned maintenance, thus increasing overall costs.