How should a pilot read back "Runway 27 Left"?

Choices

• "Runway twenty-seven left"

  Incorrect. Review the explanation and the cited FAA reference for the correct answer.

• ✓ "Runway two seven left"correct

  Runway numbers are read back by pronouncing each digit individually: "two seven left." This avoids confusion between similar-sounding numbers (e.g., "fifteen" and "fifty"). Group form ("twenty-seven") is not standard.

• "Runway 27L"

  Incorrect. Review the explanation and the cited FAA reference for the correct answer.

• "Two seven left runway"

  Incorrect. Review the explanation and the cited FAA reference for the correct answer.