The UK Air Accident Investigation Bureau (AAIB) said in a report this week there was no evidence of any technical malfunction.
However, it did make several safety recommendations.
The helicopter was approaching the platform in the dark on 27 December 2006 but flew past it and disintegrated when it hit the sea. Most of the Dauphin 2 SA365N helicopter, operated by CHC Scotia, sank.
The
