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More than two years have passed since the Turøyna accident. With the presentation of the report today, the Hearing Panel concludes its investigation.
William J. Bertheussen, director of the State Accident Investigation Bureau, says that it is a considerable job.
– We studied what happened and can prevent a similar accident in the future, "Bertheussen said.
The accident occurred when the helicopter was en route from Gullfaks B to Flesland. Until the moment of the accident, it appeared as a completely normal flight. There was no warning and therefore nothing the pilots could do
– A surface injury that became obviously invisible.
There are 12 safety recommendations The HAZARDS commission returns to. The points concern, among other things, the design of the gearbox in the helicopter.
– This was a demanding investigation. We found that the violation of fatigue was the direct cause of the accident. According to Kåre Halvorsen, general manager, a surface ulcer inside the craft has developed in an invisible manner.
Part of the work is helpful in comparing this accident with what happened to an Airbus helicopter outside Scotland since 2009. 16 people live. The report says that there are obvious similarities between the two accidents.
– We believe that Airbus tracking was not enough after the accident outside of Scotland, Halvorsen said.
Injury inside the box was due to metal particles
– In principle, the helicopter must say about such loose metal particles. We studied the effectiveness of this system. It turned out that 12% of the metal particles were labeled, "says Nørstegård.
Gearbox Problems
Two manufacturers supply gearboxes for this type of helicopter. Investigations into the Havarikommission's investigations show that the manufacturer who delivered the accident helicopter produces gearboxes with the longest and worst life span
Tor Nørtsegård states that less Ten percent of the gearboxes used in the accident have reached their life expectancy. Damage due to metal particles on many of the gears that were thrown early, says Nørstegård. The Accident Investigation Commission finds that Airbus has not begun to investigate the question of whether there is a difference in the life of the different gearboxes .
Promoted 12 points. Most of them are promoted to EASA, the European Aviation Safety Agency.
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