ERA12CA521
2012-08-21 · Deland, Florida, United States · Minor · 1 aircraft · Status: Completed
Airport DED
Aircraft involved
Probable cause & findings
The pilot’s failure to maintain airplane control on final approach in gusting wind conditions. Contributing to the accident was the pilot’s decision to operate in an environment of thunderstorms and rapidly deteriorating weather.
Factual narrative
The pilot stated she checked weather before departing on a maintenance flight in the airport traffic pattern. Some weather was located to the northwest. She departed and climbed to 1,000 feet above ground level, set the engine at cruise power, and completed the first traffic pattern. She started the second pattern and noticed the weather was moving towards the airport. As the airplane turned on to final approach, the winds increased, the airplane encountered strong turbulence, and her approach became unstable. She initiated a go-around; however, the airplane impacted the runway and came to rest inverted off the left side. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded normal operations. Examination of the wreckage by a Federal Aviation Administration inspector revealed structural damage to the airframe. Review of weather data revealed a wind shift occurred immediately prior to the accident, which was associated with nearby thunderstorms. The recorded wind speed about the time of the accident was 25 knots, gusting to 34 knots. The pilot stated that she checked the weather before departing on a maintenance flight in the airport traffic pattern; some thunderstorms were located to the northwest. She departed and climbed to 1,000 feet above ground level, set the engine at cruise power, and completed the traffic pattern. As she entered the pattern a second time, she noticed that the storms were moving toward the airport. As the airplane turned onto the final approach, the wind increased, the airplane encountered strong turbulence, and her approach became unstable. She then initiated a go-around; however, the airplane impacted the runway and came to rest inverted off of the left side. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded normal operation of the airplane. Examination of the wreckage revealed structural damage to the airframe. Review of weather data revealed that a wind shift associated with nearby thunderstorms occurred immediately prior to the accident. The recorded wind speed about the time of the accident was 25 knots, gusting to 34 knots. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Descent/approach/glide path-Not attained/maintained - C
- F Environmental issues-Conditions/weather/phenomena-Wind-Sudden wind shift-Ability to respond/compensate - F
- F Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - F
- F Environmental issues-Conditions/weather/phenomena-Convective weather-Thunderstorm-Decision related to condition - F
Verbatim from NTSB's published report. Source file
NTSB_2012_ERA12CA521.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
Matched on aircraft type or causal vocabulary (go-around, turbulence, maintenance, thunderstorm). All research papers
- NASA NTRS 2019 · Contractor Report (CR) An Examination of Aviation Accidents Associated with Turbulence, Wind Shear and Thunderstorm
The focal point of the study reported here was the definition and examination of turbulence, wind shear and thunderstorm in relation to aviation accidents.
- NASA NTRS 2019 · Reprint (Version printed in journal) Observations of severe turbulence near thunderstorm tops
Data derived from the flight tapes of two airliners that experienced severe turbulence near thunderstorm tops are used to produce quantitative descriptions of the turbulence and its environment.
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER) Political Turbulence and Aviation Safety: A Cross-National Analysis of Political Stability's Effects on Aviation Accidents
To what extent does political stability affect aviation safety? This research aims to link domestic political conditions and public safety through the consideration of aviation accident frequency.
- NASA NTRS 2019 · Conference Proceedings Operational evaluation of thunderstorm penetration test flights during project Storm Hazards '80
The National Aeronautics and Space Administration is conducting a research project called Storm Hazards '80 in order to study the prediction, detectability and avoidance of the hazards of severe storm…
- NASA NTRS 2019 · Reprint (Version printed in journal) Severe Turbulence and Maneuvering from Airline Flight Records
Digital flight records from reported clear-air turbulence incidents are used to determine winds and turbulence, to determine maneuver g loads, and to analyze control problems.
- Embry-Riddle Scholarly Commons 2019 · Journal article (IJAAA) Low Level Turbulence Detection For Airports
Abstract—— Low level wind shear and turbulence present a serious safety risk to aircraft during the approach, landing and take-off phases.