ASN Wikibase Occurrence # 208883
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| Date: | Friday 6 April 2018 |
| Time: | 12:10 LT |
| Type: |  Robin DR.400/160 Chevalier |
| Owner/operator: | Aero Club De l'Avallonais |
| Registration: | F-GCUI |
| MSN: | 1518 |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Avallon airfield (LFGE) -
 France
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Avallon Airfield (LFGE) |
| Avallon Airfield (LFGE) | |
| Investigating agency: | BEA |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot, accompanied by three passengers, took off from Avallon aerodrome on runway 04 for a local flight of approximately 40 minutes.
The pilot indicates that shortly after take-off, the power delivered by the engine decreased and the aircraft began to lose altitude. Wishing to regain altitude, the pilot kept his left hand pressed on the power control in the full throttle position.
Noting that he continued to lose altitude, he made a left turn with the intention of landing in a field bordering the aerodrome and located substantially in the take-off axis. During the turn, the aircraft struck a tree and then collided with the field surface.
BEA CONCLUSION
Shortly after take-off from Avallon aerodrome, the pilot of F-GCUI felt a decrease in engine power. The BEA's reviews did not accurately determine the causes of this power loss.
However, it could be established that:
* the carburettor nozzle showed a deformation limiting the fuel flow;
* contamination of probably endogenous but unexplained origin was present in the nozzle channel, further limiting the flow rate.
As the flights preceding the accident took place without any significant anomaly, it is possible that additional particles have agglomerated in the nozzle at the time of the take-off leading to an air/petrol mixture that is sufficiently lean to reduce the engine power as observed by the pilot.
This event is probably due to the combination of contamination of the carburettor by impurities and a defective nozzle without the contribution of either of these two factors could not be clearly established.
Accident investigation:
 |
|
Sources:
https://france3-regions.francetvinfo.fr/bourgogne-franche-comte/yonne-deux-blesses-graves-apres-chute-avion-tourisme-aerodrome-avallon-1454049.html
____________
http://aeroclub-avallon.fr/
http://tagazous.free.fr/affichage2.php?img=3172
Images:
Media:
DR400 Robin crashes, 4 on board, 2 seriously injured.
— Planes Of Legend (@PlanesOfLegend) 6 avril 2018
Yonne : deux blessés graves après la chute d'un avion de tourisme à l'aérodrome d'Avallon - France.
https://t.co/9YY8MSMxRV pic.twitter.com/cO6BLGeZw2
Go Team: accident au décollage d’un avion #DR400 à #Avallon / 2 enquêteurs @BEA_Aero seront sur place demain matin.
— BEA | Bureau d'Enquêtes & d'Analyses ✈️ 🚁🛩 🇫🇷 (@BEA_Aero) 6 avril 2018
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Apr-2018 14:42 | gerard57 | Added |
| 06-Apr-2018 18:34 | ctyone | Updated [Time, Aircraft type, Registration, Cn, Source] |
| 06-Apr-2018 18:34 | harro | Updated [Aircraft type] |
| 06-Apr-2018 21:08 | Iceman 29 | Updated [Time, Operator, Location, Phase, Departure airport, Source, Embed code, Narrative] |
| 06-Apr-2018 21:18 | Iceman 29 | Updated [Embed code, Photo, ] |
| 07-Apr-2018 06:33 | RobertMB | Updated [Aircraft type, Embed code] |
| 14-Jul-2019 12:33 | harro | Updated [Time, Phase, Departure airport, Destination airport, Narrative, Accident report, ] |
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