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The Pilots Desk
US-FAA14 CFR 121.627

Continuing flight in unsafe conditions

Read the official rule

This regulation addresses what a pilot in command must do when conditions make it unsafe to continue to the planned destination airport.

If the pilot in command or dispatcher (for domestic/flag operations) believes the flight cannot be completed safely, the pilot must not continue to that airport—unless there's literally no safer alternative. When continuing is the only option, it becomes an emergency situation under § 121.557, giving the pilot authority to deviate from regulations as needed.

Additionally, if required instruments or equipment fail during flight, the pilot must follow the specific procedures outlined in the airline's manual for handling that malfunction.

In practice, this regulation establishes a clear decision-making framework: divert to a safer airport when possible, but if you're truly committed with no better options (perhaps due to fuel, weather, or aircraft condition), you have emergency authority to do what's necessary to land safely.

*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation and consult a CFI.*

This is an original plain-English explanation for training and reference, not legal advice and not for navigation. Always rely on the current official rule linked above. Last reviewed June 20, 2026.