Which statement best describes the Functional Check Flight?

Which statement best describes the Functional Check Flight?

• A. It verifies that maintenance work is cosmetically acceptable.
• B. It confirms that systems operate within limits in flight conditions and validates airworthiness.
• C. It tests engines only.
• D. It replaces the need for daily inspections.

Answer: (C)

A Functional Check Flight is the post-maintenance flight test used to verify that all aircraft systems operate correctly under flight conditions and that the aircraft remains airworthy. It involves checking how systems work together—flight controls, hydraulics, electrical, avionics, environmental systems, and other systems affected by maintenance—not just the engine. That makes the statement describing systems operating within limits in flight and validating airworthiness the best fit. It captures the purpose of ensuring functional performance in actual flight conditions and confirming the aircraft meets safety and airworthiness standards. It isn’t about cosmetic appearance, it isn’t limited to engines, and it doesn’t replace daily inspections.

A Functional Check Flight is the post-maintenance flight test used to verify that all aircraft systems operate correctly under flight conditions and that the aircraft remains airworthy. It involves checking how systems work together—flight controls, hydraulics, electrical, avionics, environmental systems, and other systems affected by maintenance—not just the engine.

That makes the statement describing systems operating within limits in flight and validating airworthiness the best fit. It captures the purpose of ensuring functional performance in actual flight conditions and confirming the aircraft meets safety and airworthiness standards.

It isn’t about cosmetic appearance, it isn’t limited to engines, and it doesn’t replace daily inspections.