http://www.bbc.co.uk/news/uk-scotland-n ... d-14899114
Crew error and the malfunction of an alert system have been blamed for a helicopter ditching in the North Sea.
The 16 passengers and two crew survived the incident in February 2009, which involved a Bond Super Puma.
It came down near a BP oil platform in the ETAP field, 125 miles (201km) east of Aberdeen, in foggy conditions.
The Air Accidents Investigation Branch has said the two pilots were unaware the aircraft was landing on the sea rather than the heli-deck.
Two terrain awareness warning systems were also not working at the time.
The AAIB has made 27 safety recommendations.
Later, in April that year, 16 men died when another Bond Super Puma crashed into the sea off Peterhead.
The AAIB report into that incident is still awaited.