2013/22

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Description

The helicopter operator Nordlandsfly used a Eurocopter SA315B Lama helicopter to perform sling load operation close to a power line in northern Norway. During lowering of a load, the main rotor collided with a traverse furthest out on a mast on the power line, and it was immediately necessary to do an emergency landing. The emergency landing was very hard and in steep terrain. The pilot in command and the passenger were seriously injured, and the helicopter destroyed. Accident Investigation Board Norway (AIBN) issues one safety recommendation in this report (see Appendix B).

Safety recommendation

Safety recommendation SL no. 2013/06T

The accident with LN-ODD has shown that the main rotor collided with the traverse on the mast and resulted to the accident. The collision would have been avoided if the flight had been flown with greater safety margins between the structure and the helicopter. Report Safety Studie On-shore Helicopter "Sikkerhetsstudie innlands helikopter" states that collisions with structures have caused many accidents. It does not exist any specific requirements or industrial standard to such a minimum safety margin.

Accident Investigation Board Norway (AIBN) recommends Norwegian Civil Aviation Authority (NCAA), through its leadership in Flight Safety Forum for Operators of On-shore Helicopters "Flysikkerhetsforum for operatører av innlandshelikoptre (FSF)", to establish an industrial standard regarding minimum safety distance between structures and helicopters during flight and announces this to the customers.

Location
Haustreisdalen, Grane, Nordland
Occurrence date
24.05.2011
Aircraft
Eurocopter SA315 Lama
Registration
LN-ODD
Meteorological conditions
VMC
County
Nordland
Type of occurrence
Accident
Type of operation
Commercial, other
Category of operation
Heavy, helicopter (> 2 250kg)
Aircraft category
Helicopter, Single-engine, Turboprop/turboshaft
FIR/AOR
ENBD (Bodø ATCC)
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