ASN Wikibase Occurrence # 233432
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| Date: | Sunday 1 March 2020 |
| Time: | 14:00 |
| Type: |  LET L-23 Super Blanik |
| Owner/operator: | Huntsville Soaring Club |
| Registration: | N296BA |
| MSN: | 948117 |
| Year of manufacture: | 1994 |
| Total airframe hrs: | 1680 hours |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Moontown Airport (3M5), AL -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | Huntsville, AL (3M5) |
| Huntsville, AL (3M5) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
According to the glider pilot, the purpose of the flight was to release from the tow about 300 ft above ground level, return to the airport, and land on the departure runway in the opposite direction, which would simulate the response to a "rope-break" emergency during the initial climb. After departure from the runway and release from the tow, the pilot completed a 270° turn on the north side of the runway and had to make another 90°, left base-to-final turn to return toward the runway. While still on the base leg, the glider encountered an 11-knot wind from the south, gusting to 18 knots. The pilot believed that the glider must have encountered "wind shear" as he "lost all elevator control," and the glider then impacted terrain. The Federal Aviation Administration inspector who conducted a postaccident examination of the glider reported that he established flight control continuity. The pilot reported that there were no preaccident mechanical malfunctions or failures with the glider that would have precluded normal operation.
Probable Cause: The pilot's failure to maintain glider control and his exceedance of the glider's critical angle of attack while maneuvering in gusting wind conditions, which resulted in an aerodynamic stall.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N296BA
Location
Media:
🇺🇸USA, Moontown Airport (3M5), AL -Two people injured in LET L-23 Super Blanik glider N296BA.
— PLANES OF LEGEND (@PlanesOfLegend) March 3, 2020
ASN: https://t.co/Lj3TNWiNU6
Press: https://t.co/j2C07squ9J pic.twitter.com/20gLwOnkkj
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Mar-2020 05:21 | Captain Adam | Added |
| 02-Mar-2020 15:20 | RobertMB | Updated [Time, Aircraft type, Registration, Cn, Operator, Source, Narrative] |
| 03-Mar-2020 02:40 | RobertMB | Updated [Source] |
| 03-Mar-2020 12:13 | Iceman 29 | Updated [Phase, Source, Embed code] |
| 03-Jul-2020 12:38 | ASN Update Bot | Updated [Time, Operator, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
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