Do not attempt a takeoff or approach when there is evidence of a gust front on or near the runway in use.

• A. T/O only
• B. Approach only
• C. Both T/O and approach
• D. Neither

Answer: (C)

Gust fronts bring rapid and unpredictable changes in wind speed and direction, creating hazardous wind shear and microburst conditions near the runway. That instability affects both phases of flight that are most sensitive: takeoff and landing. During takeoff, a gust front can reduce or rapidly change headwind, degrade lift, and spoil climb performance right as you need a clean and stable transition to flight. During approach, abrupt wind shifts and gusts near the ground can disrupt airspeed and flight path, making the final approach and flare unsafe. Because of these dangers, the prudent action is to refrain from attempting either takeoff or approach when a gust front is evident on or near the runway, and instead wait for the gust front to pass or divert as needed.