To comply with FAR dispatch regulations regarding adequate runway lengths, JetBlue will normally dispatch all flights based on which runway condition?

To comply with FAR dispatch regulations regarding adequate runway lengths, JetBlue will normally dispatch all flights based on which runway condition?

• A. Dry
• B. Wet
• C. Icy
• D. Contaminated

Answer: (B)

The key idea is that takeoff and landing performance must be evaluated against the runway surface condition that could realistically be present, so the required runway length is evaluated using that condition to ensure safety margins. Wet runways degrade performance enough to require longer distances than a dry runway, but they are a common, non-extreme condition that operators plan for in normal dispatch. By basing dispatch calculations on a wet surface, JetBlue ensures there is adequate runway length if moisture is present, while still avoiding the excessive conservatism that would come from assuming ice or heavy contamination unless those conditions are forecast or observed. If the runway turns out to be icy or contaminated, dispatch decisions would be adjusted accordingly, potentially shortening the allowable operations or canceling the flight.

The key idea is that takeoff and landing performance must be evaluated against the runway surface condition that could realistically be present, so the required runway length is evaluated using that condition to ensure safety margins. Wet runways degrade performance enough to require longer distances than a dry runway, but they are a common, non-extreme condition that operators plan for in normal dispatch. By basing dispatch calculations on a wet surface, JetBlue ensures there is adequate runway length if moisture is present, while still avoiding the excessive conservatism that would come from assuming ice or heavy contamination unless those conditions are forecast or observed. If the runway turns out to be icy or contaminated, dispatch decisions would be adjusted accordingly, potentially shortening the allowable operations or canceling the flight.