ASN Wikibase Occurrence # 268197
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| Date: | Wednesday 29 September 2021 |
| Time: | 13:00 LT |
| Type: | Just Highlander |
| Owner/operator: | |
| Registration: | N419SD |
| MSN: | JAESC0129 |
| Year of manufacture: | 2008 |
| Total airframe hrs: | 1247 hours |
| Engine model: | Rotax 912 ULS |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Byrd’s Backcountry Airstrip (51AR), Franklin County, Ozark, AR -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | West Cobb, AR |
| West Cobb, AR | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported he departed from the airport to practice a short takeoff and landing (commonly known as 'STOL') race circuit in preparation for a race that was going to occur at the airport. As the pilot was on approach for landing, he noticed the wind speed had increased while he was turning base to final at 60 ft agl. The pilot had a 16-mph buffer above the airplane's aerodynamic stall speed, with two notches of flaps applied, and a 15° bank turn. The airplane was then 'hit by a gust' that elevated the right wing to about 30° of bank. The pilot attempted to correct the high bank angle with no success. He reported 'all of my lift disappeared,' and the airplane became uncontrollable at about 55 ft agl. The pilot concluded that a 'large tail wind shear' aerodynamically stalled the airplane, and he was unable to recover at the low altitude with the various obstacles and structures present on the STOL race circuit course. The airplane 'pancaked' and came to rest upright in a field, next to a fence line.
The airplane sustained substantial damage to the fuselage and both wings. The pilot reported there were no preimpact mechanical malfunctions or failures with the airframe and engine that would have precluded normal operation. A review of meteorological data showed that gusting wind conditions and low-level wind shear were likely present in the area at the time of the accident.
Probable Cause: The airplane's encounter with gusting wind conditions and low-level wind shear on final approach, which resulted in a loss of control, an aerodynamic stall, and a subsequent hard landing.
Accident investigation:
 |
|
Sources:
NTSB CEN21LA471
FAA register: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=419SD
https://flightaware.com/resources/airport/51AR/map/satellite
https://flightaware.com/photos/airport/51AR/sort/votes/page/1-2
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Sep-2021 00:14 | Geno | Added |
| 30-Sep-2021 13:04 | johnwg | Updated [Time, Location, Phase, Departure airport, Destination airport, Source, Narrative, Category] |
| 25-Jun-2022 09:44 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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