ASN Wikibase Occurrence # 275644
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| Date: | Friday 18 February 2022 |
| Time: | 13:40 |
| Type: |  Guimbal Cabri G2 |
| Owner/operator: | FHATO Flight Training Center |
| Registration: | F-HGRE |
| MSN: | 1287 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Grenoble-Alpes Isère Airport (GNB/LFLS) -
 France
|
| Phase: | Taxi |
| Nature: | Training |
| Departure airport: | Grenoble/Le Versoud Airfield (LFLG) |
| Grenoble-Alpes Isère Airport (GNB/LFLS) | |
| Investigating agency: | BEA |
| Confidence Rating: |  Accident investigation report completed and information captured |
The Guimbal Cabri G2 helicopter hit the top of a 20-meter high lighting pylon before crashing near a fuel station at the Grenoble-Alpes Isère Airport (GNB).
When the student pilot went on long final at Grenoble-Isère airfield, the aerological conditions were changing. The wind was strengthening, changing direction, accompanied by turbulence and strong gusts. The latter were not foreseen in the flight schedule in the morning TAF message. During the translation to the parking position, with a right crosswind, the helicopter started to turn on its yaw axis to the left. The student pilot initially applied right rudder without reaching the stop and was unable to counteract the movement. The left yaw rotation was then amplified by the pilot pulling on the collective pitch control to get away from the ground, then by the pilot's left rudder pedal input, probably disoriented by the high yaw rate. After several turns, the helicopter collided with a pylon and fell vertically to the ground.
Contributing Factors
Contributing to the loss of yaw control of the helicopter were:
- Insufficient type rating training curriculum at the approved training organization (ATO), not sufficiently addressing the specifics of the fenestron and its maneuverability consequences on the Cabri G2. This may have contributed to the student pilot not performing the appropriate actions in an unintentional left yaw departure situation;
- the lack of awareness of the student pilot during his training on the local aerological phenomena frequently present on certain airfields.
Accident investigation:
 |
|
Sources:
https://www.ledauphine.com/faits-divers-justice/2022/02/18/crash-d-helicoptere-sur-l-aeroport-de-saint-etienne-de-saint-geoirs-un-blesse-grave-yyly
https://www.bea.aero/en/investigation-reports/notified-events/detail/accident-to-the-guimbal-cabri-registered-f-hgre-on-18-02-2022-at-grenoble/
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Feb-2022 07:38 | Romain58 | Added |
| 19-Feb-2022 07:39 | harro | Updated [Aircraft type, Other fatalities, Departure airport, Destination airport, Damage, Narrative, Category] |
| 19-Feb-2022 07:44 | harro | Updated [Time, Phase, Departure airport, Destination airport] |
| 19-Feb-2022 18:13 | harro | Updated [Location] |
| 25-Feb-2022 07:55 | harro | Updated [Phase, Nature, Source] |
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