Investigation of helicopter accident at Turøy near Bergen in Hordaland county, Norway
29 April 2016 the Main Rotor Head (MRH) and mast suddenly detached from an Airbus Helicopters H225 enroute from Gullfaks B to Bergen Airport Flesland. The helicopter impacted on a small island east of Turøy. All 13 people on board perished.
On 28 June 2016 a preliminary report is published to disseminate findings from the ongoing investigation.
At this stage of the investigation, the AIBN finds that the accident most likely was a result of a fatigue fracture in one of the eight second stage planet gears. It appears that the fracture has propagated in a manner which is unlikely to become detected by existing mandatory or supplementary systems for warning of an imminent failure.
What initiated the fracture has not yet been determined.
Preliminary report 28 June 2016.
Latest update: 28.06.2016
Previously published information
01.06.2016: The Helicopter Accident: New preliminary report
27.05.2016: The Helicopter Accident: Information to the public about components found in the area
27.05.2016: The Helicopter Accident: Updated preliminary report
13.05.2016: The Helicopter Accident: Preliminary report
06.05.2016: The Helicopter Accident: The search for components is resumed
02.05.2016: The Helicopter Accident: Invitation to Press Conference at Haakonsvern naval base in Bergen Tuesday 3 May at 1400 hours
02.05.2016: The Helicopter Accident: Data from the combined FDR and CVR retrieved. Data is of good quality.
01.05.2016: The Helicopter Accident: The work continues
- Turøy, Hordaland county, Norway
- Occurrence date
- ICAO Location indicator
- Øvrige helikoptre
- Meteorological conditions
- Type of occurrence
- Type of operation
- Category of operation
- Heavy, helicopter (> 2 250kg)
- Aircraft category
- Helicopter, Multi-engine, Turboprop/turboshaft
- ENSV (Stavanger ATCC)