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| Date: | Friday 12 April 2024 |
| Time: | 15:00 |
| Type: |  Aerospool WT-9 Dynamic |
| Owner/operator: | AIX ULM |
| Registration: | 67BVN |
| MSN: | DY543 |
| Year of manufacture: | 2012 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Other fatalities: | 0 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Peynier -
 France
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | Aix-Les Milles Airport (LFMA) |
| Aix-Les Milles Airport (LFMA) | |
| Investigating agency: | BEA |
| Confidence Rating: |  Accident investigation report completed and information captured |
During a stall exercise, the aircraft went into a spin. The instructor deployed the emergency parachute.
Contributing Factors
Factors that may have contributed to the loss of control:
* The absence of stall-strips, aerodynamic devices designed to improve the stall behavior of the ultralight aircraft (ULM).
* The tendency of the WT9, when not equipped with these stall-strips, to drop a wing during a stall.
* Possible inappropriate control inputs from either the instructor or the student pilot.
An instinctive and unsuitable reaction on the controls, such as an aileron input to counter the onset of a roll, can worsen the loss of control (leading to a spin, maintaining a spin, or flattening of the spin), notably due to the aerodynamic effects resulting from control surface deflection.
Accident investigation:
 |
|
Sources:
https://bea.aero/en/investigation-reports/notified-events/detail/accident-to-the-ulm-wt9-dynamic-club-identified-67bvn-on-12-04-24-at-peynier/
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Apr-2024 07:52 | ASN | Added |
| 25-Apr-2024 07:52 | ASN | Updated |
| 22-Aug-2025 16:31 | ASN | Updated [Time, Narrative, Accident report, ] |
Corrections or additions? ... Edit this accident description
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