Which condition disqualifies accepting LAHSO clearance?

Which condition disqualifies accepting LAHSO clearance?

• A. Less than 3 knots tailwind
• B. Daytime unless a approved lighting system installed
• C. Must land in the first 1/3 of the runway or 3000 ft, whatever is shorter
• D. Windshear in the last 20 minutes

Answer: (D)

Land and Hold Short Operations (LAHSO) require a safe and predictable landing with enough remaining runway to stop before the hold-short point. Windshear creates sudden, unpredictable changes in airspeed and performance, which can dramatically increase the stopping distance and make it unsafe to rely on the published ability to stop before the hold-short point. If windshear has occurred recently, the flight crew cannot be confident in achieving the required stopping distance, so accepting LAHSO clearance is disqualified. The other conditions described—acceptable low tailwind, daytime operation with proper lighting, and landing within the defined landing-distance window—are consistent with LAHSO when all factors are favorable.

Land and Hold Short Operations (LAHSO) require a safe and predictable landing with enough remaining runway to stop before the hold-short point. Windshear creates sudden, unpredictable changes in airspeed and performance, which can dramatically increase the stopping distance and make it unsafe to rely on the published ability to stop before the hold-short point. If windshear has occurred recently, the flight crew cannot be confident in achieving the required stopping distance, so accepting LAHSO clearance is disqualified. The other conditions described—acceptable low tailwind, daytime operation with proper lighting, and landing within the defined landing-distance window—are consistent with LAHSO when all factors are favorable.