Stall / Spin · NTSB WPR12FA432

KUNDEL VANS RV 7A — Laramie, WY

1 fatal High-time pilotBase-to-final turn
DateSeptember 21, 2012
LocationLaramie, WY
AircraftKUNDEL VANS RV 7A (amateur-built)
Purpose of flightPersonal
ConditionsDay · Visual Meteorological Cond
Phase / occurrenceApproach-VFR pattern final Aerodynamic stall/spin
Pilot age79
Pilot total time5,000 hrs · High time
Time in type35 hrs
Fatalities1

Probable cause

The pilot’s decision to attempt a landing with a gusting tailwind, which resulted in his loss of airplane control during final approach and a subsequent aerodynamic stall/spin.

NTSB findings

  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Airspeed-Not attained/maintained - C
  • Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • Environmental issues-Conditions/weather/phenomena-Wind-Tailwind-Effect on equipment
  • Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C

What happened

The pilot approached runway 21 straight in from the northeast, after having completed a cross-country flight. Before attempting to land at the non-towered airport, the pilot overflew runway 21 before making a left turn and entering a left downwind for runway 21. A witness reported seeing the airplane while on final approach just east of the airport about 300 to 400 feet above ground level (agl), "...and everything looked normal," but as the airplane got closer he observed some "wing rock," similar to a small Dutch Roll. Shortly thereafter, when the airplane was about 100 to 150 feet agl, its left wing dipped a little, followed by the right wing dropping very fast, which was then followed by a spin to the right and subsequent impact with terrain. A postimpact fire subsequently erupted, which consumed the forward section of the airplane. The wind was reported to be 350 degrees at 14 knots, with gusts to 24 knots, about the time of the accident. A wind of such direction and velocity would have likely resulted in a significant tailwind for the pilot to contend with. The pilot's decision to attempt a downwind landing in gusting wind conditions likely resulted in his loss of airplane control and subsequent impact with terrain. The airport was also equipped with a 90-degree intersecting runway, runway 30, which should have been the runway of choice given the prevailing wind; it was not clear why the pilot did not elect to use this runway. A postaccident examination of the airframe and engine revealed no mechanical anomalies that would have precluded normal operation.

An editorial "what led to it / how to avoid it" analysis for this accident is generated separately and will appear here.

View the official NTSB docket →