NTSB CAROL · Event
Event CEN25LA200
Registry · N45113
FAA Aircraft Registry record.
Make / Model
AIR TRACTOR INC AT-502
Year of manufacture
1990 · 35 years old at event
TCDS
A17SW · AIR TRACTOR INC
Engine
P&W CANADA PT6A-60A (1050 hp)
Seats / Engines
1 seats · 1 engine
Last airworthiness date
19900410
ADS-B equipped
Yes — Mode-S A5786A
Registrant of record
OVER AND UNDER FLYING SERVICE INC DBA
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot’s loss of control during takeoff due to an encounter with a sudden wind shift.
Factual narrative
The pilot was attempting to takeoff for a local aerial application flight. During his flights that day, he had been monitoring a storm cell which was building to the south of the runway. He recalled that during his last landing, the windsock indicated a light wind; however, after reloading with fertilizer, he started the takeoff roll and noticed the 10-knot windsock was “completed inflated and whipping violently”. As he continued the takeoff, he felt the tail of the airplane being pushed by the wind, resulting in a back-and-forth motion. Despite being at a low speed (about 40 to 50 mph) and without pilot input, the force of the wind resulted in the airplane becoming airborne about 3 ft. The airplane then nosed down, tumbled, and came to rest inverted. He reported no mechanical malfunctions contributed to the accident, and he suspected the airplane encountered a downdraft or microburst. A review of weather information found an area of convective weather within 10 nautical miles south-southwest of the airstrip. FAA Advisory Circular 00-24C Thunderstroms highlights that within 20 miles of a severe thunderstorm the potential exists for low-level wind shear or microburst. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- — Environmental issues-Conditions/weather/phenomena-Wind-Sudden wind shift-Effect on operation
- — Environmental issues-Conditions/weather/phenomena-Convective weather-Thunderstorm-Effect on operation
- — Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
Verbatim from NTSB's published report. Source file
NTSB_2025_CEN25LA200.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (wind shear, loss of control, thunderstorm, microburst). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- 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 · Conference Paper
Optimal recovery from microburst wind shear
The flight path of a twin-jet transport aircraft is optimized in a microburst encounter during approach to landing. The objective is to execute an escape maneuver that maintains safe ground clearance …
- NASA NTRS 2019 · Conference Paper
Aircraft performance in a JAWS microburst
Attention is given to the detailed features of a servere microburst event, the flight behavior of a 727 airliner in such an event as predicted by a numerical simulation, and several low level wind she…
- NASA NTRS 2019 · Conference Paper
Analysis of aircraft control strategies for microburst encounter
Analyses have indicated that improved control strategies could reduce the threat posed by the presence of microburst-type wind shear during aircraft takeoffs and landings.
- NASA NTRS 2019 · Reprint (Version printed in journal)
Evolution of downdrafts and rotation in an Illinois thunderstorm
Multiple-Doppler radar observations of a non-severe Illinois thunderstorm with nearly rectilinear vertical wind shear and storm motion related to the wind at a height of 2.5 km are discussed.
- NASA NTRS 2013 · Conference Paper
Optimal nonlinear estimation for aircraft flight control in wind shear
The most recent results in an ongoing research effort at Princeton in the area of flight dynamics in wind shear are described.
Browse the full corpus — academia portal ↗