The RNLI has released video footage and photographs of the Aith Lifeboat crew at the scene of the helicopter wreckage.
The footage shows the crew surveying the scene of the incident on Friday evening with lighting rigs erected on the mainland to assist rescuers.
In the photographs a volunteer can be seen training a light on to the wreckage and crew on the Y-boat are seen inspecting the ditched helicopter.
A yellow flotation device can be seen in the images.
Four people were killed when the Super Puma helicopter came down south of Garths Ness (see previous stories).
There have been calls for oil companies to answer “detailed questions” about workers’ safety when they are being flown to and from rigs in the North Sea.