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ASN Wikibase Occurrence # 196677
Last updated: 20 February 2020
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Time:12:46 LT
Type:Silhouette image of generic DR40 model; specific model in this crash may look slightly different
Robin DR.400/180R Remorqueur
Owner/operator:Segelfluggruppe Bern
Registration: HB-KFK
C/n / msn: 1939
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:near Bern-Belp (LSZB) -   Switzerland
Phase: Approach
Departure airport:Bern-Belp airport (LSZB)
Destination airport:Bern-Belp airport (LSZB)
Investigating agency: STSB Switzerland
The aircraft lost altitude and struck the chimney and roof of a building while the pilot was performing a tight turn to increase spacing with a glider that was landing ahead of the aircraft.
Rescue services freed the 44-year-old pilot from the cockpit and he was flown to a hospital by helicopter.

The accident was caused by the pilot losing control of the aircraft during a tight turn at low altitude above ground, resulting in a collision with an obstacle.
The pilot's decision to increase the distance to a preceding glider with a full circle near the ground during the final approach is considered causal for the accident.
The following factors have been identified as directly contributing to the accident:
* The pilot approached the airfield in a way that increased mental capacity and made airspace observation difficult.
* The pilot's little training in handling go-arounds favoured the decision to fly a full circle close to the ground;
The following factors contributed systemically to the accident:
* The Flarm collision warning system was not integrated without technical problems and was switched off by the pilot so that no warning was generated against the glider in front.
* The agreement between air traffic control and the glider group meant that the pilot was not given any traffic information regarding the preceding aircraft.
* The agreement between air traffic control and the glider flight group was wrongly interpreted by numerous pilots - including the accident-pilot - because their implementation was demanding.


Accident investigation:
Investigating agency: STSB Switzerland
Status: Investigation completed
Duration: 1 year and 5 months
Download report: Final report

Revision history:

15-Jul-2017 18:09 gerard57 Added
15-Jul-2017 18:10 harro Updated [Time, Aircraft type, Operator]
15-Jul-2017 18:14 harro Updated [Aircraft type, Registration, Cn, Source]
15-Jul-2017 18:42 tommymaurer Updated [Source]
15-Jul-2017 22:30 Iceman 29 Updated [Embed code]
16-Jul-2017 07:31 Iceman 29 Updated [Time, Location, Departure airport, Destination airport, Source, Embed code, Narrative]
16-Jul-2017 13:23 TB Updated [Time, Location, Source, Embed code, Narrative]
16-Jul-2017 13:31 gofer Updated [Embed code, Narrative]
16-Jul-2017 17:09 TB Updated [Time, Location, Source, Narrative]
12-Dec-2018 12:23 harro Updated [Time, Phase, Narrative, Accident report, ]

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