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ASN Wikibase Occurrence # 214888
Last updated: 18 September 2020
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Date:21-JUN-2018
Time:
Type:Silhouette image of generic H500 model; specific model in this crash may look slightly different
Hughes 500D (369D)
Owner/operator:Heliwest
Registration: OH-HNX
C/n / msn: 470112D
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:10 km NW of Grimstad, Aust-Agder County -   Norway
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:SU
Departure airport:
Destination airport:
Investigating agency: AIBN
Narrative:
During laser scanning of a power line 21 June 2018, the helicopter main rotor hit a crossing power line. Three conductors on the 110 kV line were cut, but the helicopter made a safe landing at the nearby airport Gullknapp (ENGK).

None of the two persons onboard were injured, and the helicopter was only substantially damaged. The incident will be seen in conjunction with a similar incident that occurred on January 18, 2018, where a helicopter, LN-OST, was close to hitting a crossing power line during powerline inspection.

AIBN made one recommendation on marking crossing wires.

Sources:

https://www.aibn.no/Aviation/Investigations/18-550
http://aerossurance.com/helicopters/wirestrike-powerline-inspection
http://www.flyfinland.fi/view/13212/

Accident investigation:
cover
  
Investigating agency: AIBN
Status: Investigation completed
Duration: 1 year 1 month
Download report: Final report
Other occurrences involving this aircraft

1 Feb 1990 D-HOLG Deutscher Helicopter Dienst (DHD) 0 Lahrbach sub


Images:

Photo of OH-HNX courtesy AirHistory.net


Helsinki - Malmi (EFHF / HEM)
30 July 2020; (c) Juhani Sipilš

Revision history:

Date/timeContributorUpdates
31-Aug-2018 11:42 penu Added
31-Aug-2018 14:21 penu Updated [Cn, Source]
13-Jul-2019 13:03 Aerossurance Updated [Operator, Source, Damage, Narrative]
12-Aug-2019 19:37 harro Updated [Aircraft type, Accident report, ]

Corrections or additions? ... Edit this accident description