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ASN Wikibase Occurrence # 211093
Last updated: 23 June 2021
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Time:c. 10:00 LT
Type:Silhouette image of generic AS50 model; specific model in this crash may look slightly different
Eurocopter AS 350B3+ Écureuil
Owner/operator:Air Zermatt
Registration: HB-ZKF
MSN: 4541
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:near Raron aerodrome (VS) -   Switzerland
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Fire fighting
Departure airport:Raron Airfield (LSTA)
Destination airport:Raron Airfield (LSTA)
Investigating agency: SUST Switzerland
The accident occurred during an exercise with an underslung firefighting bucket. The aircraft clipped a power line and came to rest in a lake.
The pilot, alone on board, managed to get out of the machine. Injured, he was transported to hospital in Bern.

The accident in which a helicopter collided with a high-voltage line while taking up water in a lake was due to the fact that the pilot did not notice the helicopter drifting to the side during the hovering flight by means of a vertical reference to the water surface.
No person was following the operation from the ground, hence no warning could be given.



Accident investigation:
Investigating agency: SUST Switzerland
Status: Investigation completed
Duration: 11 months
Download report: Final report



Photo: Police cantonale valaisanne

Revision history:

16-May-2018 14:00 Iceman 29 Added
16-May-2018 14:02 Iceman 29 Updated [Embed code]
16-May-2018 14:07 Iceman 29 Updated [Time, Embed code]
16-May-2018 14:11 Iceman 29 Updated [Aircraft type, Registration, Source]
16-May-2018 14:12 Iceman 29 Updated [Aircraft type]
16-May-2018 14:12 Anon. Updated [Aircraft type]
16-May-2018 14:13 harro Updated [Aircraft type, Registration, Cn, Source]
16-May-2018 14:14 harro Updated [Aircraft type]
16-May-2018 14:19 Iceman 29 Updated [Photo, ]
16-May-2018 14:23 Anon. Updated [Damage]
16-May-2018 16:04 Geno Updated [Departure airport, Destination airport, Source]
16-May-2018 18:05 Iceman 29 Updated [Aircraft type]
16-May-2018 19:26 Aerossurance Updated [Aircraft type, Location, Narrative]
16-May-2018 21:26 Aerossurance Updated [Narrative]
17-May-2018 20:25 Iceman 29 Updated [Embed code]
08-May-2019 17:36 harro Updated [Departure airport, Destination airport, Embed code, Narrative, Accident report, ]
09-Dec-2020 08:45 harro Updated [Departure airport, Destination airport, Photo]

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