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ASN Wikibase Occurrence # 220635
Last updated: 23 March 2021
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Time:12:45 LT
Type:Silhouette image of generic AS50 model; specific model in this crash may look slightly different
Eurocopter AS 350B3 Ecureuil
Registration: LN-OAN
C/n / msn: 3199
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Svanvik, Finnmark -   Norway
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:External load operation
Departure airport:
Destination airport:
Investigating agency: AIBN
The helicopter was used for demounting of an old 45m communications mast. During the long line HESLO operation, the main rotor blades hit the new mast which was built a few meters away, resulting in blade damage and vibration. The pilot immediately stopped the operation, and made an emergency landing nearby. No one was injured.

The Accident investigation Board Norway say: "The incident would probably have been avoided if the safety margin between the helicopter and the obstacle had been greater. The safe job analysis did not reveal that the "longline" was too short to provide the necessary safety distance."

They issued two safety recommendations related to risk assessment and safe job analysis. Both safety recommendations are directed to CAA-Norway


Accident investigation:
Investigating agency: AIBN
Status: Investigation completed
Download report: Final report



Photo of LN-OAN courtesy

Tromsø - Langnes (ENTC / TOS)
4 March 2017; (c) Kas van Zonneveld

Revision history:

08-Jan-2019 11:52 Aerossurance Added
08-Jan-2019 11:52 Aerossurance Updated [Location]
27-Dec-2019 11:52 Aerossurance Updated [Source, Embed code, Narrative]
27-Dec-2019 11:53 Aerossurance Updated [Time, Embed code]
11-Sep-2020 19:10 harro Updated [Date, Accident report, ]

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