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| Date: | Friday 15 July 2022 |
| Time: | |
| Type: |  Jonker JS-1B Revelation |
| Owner/operator: | JS1B-FFVV Partnership |
| Registration: | ZS-GDE |
| MSN: | 1B-032 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Other fatalities: | 0 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Château-Arnoux-Saint-Auban Airfield (LFMX) -
 France
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Château-Arnoux-Saint-Auban Airfield (LFMX) |
| Château-Arnoux-Saint-Auban Airfield (LFMX) | |
| Investigating agency: | BEA |
| Confidence Rating: |  Accident investigation report completed and information captured |
During the approach to the north of the aerodrome, the pilot of a Jonker JS-1B Revelation was surprised by a loss in performance on short final. The glider hit the vegetation and then the ground.
It is possible that an aerological phenomenon was the cause of the loss of altitude of ZS-GDE on short final. Indeed, the meteorological conditions on the day of the accident associated with a specific geographical environment to the north of the aerodrome were conducive to the presence of turbulence and wind shear near the ground. The trajectories of the other gliders on final shortly before the accident being normal, this phenomenon would have appeared suddenly and locally. It would have caused a sudden drop in the airspeed or "air" speed and in the angle of attack of the glider, resulting in a significant reduction in lift and a rapid loss of altitude. The use of the airbrakes having little effect on the speed, their retraction by the pilot will not have made it possible to reduce the rate of descent.
Accident investigation:
 |
|
Sources:
https://bea.aero/en/investigation-reports/notified-events/detail/accident-to-the-glider-jonker-js1-registered-zs-gde-on-15-07-2022-at-chateau-arnoux-saint-auban/
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Jul-2022 09:47 | harro | Added |
| 23-Jul-2022 09:48 | harro | Updated [Aircraft type, Location] |
| 24-Jul-2022 19:25 | RobertMB | Updated [Aircraft type, Cn, Operator, Narrative] |
| 31-Aug-2023 08:16 | harro | Updated |
Corrections or additions? ... Edit this accident description
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