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Home > Exam Questions > FAA PPL(A) - Private Pilot Airplane > Preflight Preparation > During the run-up at a high-elevation airport, a pilot notes a slight engine roughness that is not affected by the magneto check but grows worse during the carburetor heat check. Under these circumstances, what would be the most logical initial action?

319 - FAA PPL(A) USA - During the run-up at a high-elevation airport, a pilot notes a slight engine roughness that is not affected by the magneto check but grows worse during the carburetor heat check. Under these circumstances, what would be the most logical initial action?

Question 319 - Preflight Preparation - FAA PPL(A) - Private Pilot Airplane

Reduce manifold pressure to control detonation

Check the results obtained with a leaner setting of the mixture

Taxi back to the flight line for a maintenance check

Training tests and timed exam simulations FAA PPL(A) - Private Pilot Airplane

Preflight Preparation Training! PRO Question explanation