ASN Wikibase Occurrence # 208927
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| Date: | Friday 6 April 2018 |
| Time: | 17:30 LT |
| Type: | gyrocopter (copy of AutoGyro MT-03) |
| Owner/operator: | Private |
| Registration: | 85-ALT |
| MSN: | |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Near Flavacourt ULM airfield, Oise -
 France
|
| Phase: | Take off |
| Nature: | Test |
| Departure airport: | Flavacourt ULM airfield |
| Flavacourt ULM airfield | |
| Investigating agency: | BEA |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot took off from runway 14 of the Flavacourt ULM platform for a test flight following the installation of a complete canopy and a modification of the empennage which he carried out. As soon as the wheels lifted off the ground, the gyroplane started to yaw to the right and then took off. It turned and gradually tilted to the right while climbing. The autogyro then suddenly rolled to the left, rolled on its back, fell and hit the ground about 300 m to the right of the threshold of runway 14.
Evidence suggests that the autogyro was still under development and modification by the pilot. It is very likely that the ULM had a rear centering which forced the pilot to have a significant nose-down action during takeoffs. In addition, the ULM was difficult to control in yaw at low speed during power changes. These handling difficulties can be explained by an unsuitable setting of the rotor head on the mast taking into account the relatively large weight of the engine as well as by the direction of rotation of the propeller, reversed compared to that of a propeller equipping the Rotax 912/914 usually installed on gyroplanes.
During takeoff, the pilot did not reduce the power and the ULM gained height while continuing to veer to the right although the rudder was turned to the left. Under these conditions, the pilot lost control of his aircraft.
Accident investigation:
 |
|
Sources:
http://www.lefigaro.fr/flash-actu/2018/04/06/97001-20180406FILWWW00361-oise-un-mort-dans-le-crash-d-un-ulm.php
http://www.leparisien.fr/flavacourt-60590/flavacourt-un-homme-decede-dans-un-accident-d-ulm-06-04-2018-7650669.php
https://actu.fr/hauts-de-france/flavacourt_60235/flavacourt-mort-dans-accident-dulm-pres-serifontaine_16260307.html
https://www.bea.aero/en/investigation-reports/notified-events/detail/event/perte-de-controle-lors-du-decollage-collision-avec-le-sol-5/
https://en.m.wikipedia.org/wiki/ELA_07
Images:
Media:
An autogyro crashed in Flavacourt, France, 1 fatalitie.
— Planes Of Legend (@PlanesOfLegend) 7 avril 2018
Un homme âgé d'une cinquantaine d'années est mort en fin d'après-midi dans le crash de son ULM, alors qu'il venait de décoller de la base de Flavacourt dans le sud-ouest de l'Oise, France.https://t.co/VTfNcJ3Po3 pic.twitter.com/UxdbWaGMeJ
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 07-Apr-2018 09:02 | Iceman 29 | Added |
| 07-Apr-2018 10:22 | Iceman 29 | Updated [Embed code, Photo, ] |
| 07-Apr-2018 10:22 | Iceman 29 | Updated [Photo, ] |
| 07-Apr-2018 10:29 | Iceman 29 | Updated [Source] |
| 09-Apr-2018 01:23 | Geno | Updated [Aircraft type, Location, Destination airport, Source, Damage, Plane category] |
| 13-Apr-2018 15:02 | harro | Updated [Registration, Source] |
| 24-Apr-2020 07:59 | harro | Updated [Location, Nature, Departure airport, Destination airport, Narrative, Accident report, ] |
| 04-Aug-2020 19:24 | harro | Updated [Source, Accident report, ] |
| 19-Nov-2020 14:41 | Solicitorious | Updated [Aircraft type, Accident report] |
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