There was an incident in Feb 1981 where a fishing boat capsized/sank and the inshore rescue craft overturned in high winds. A Sea King recovered two men, a third swam to the shore, but a fourth was trapped in one of the boats (I think the fishing boat) and drowned. There is a photograph somewhere with a caption...
Edit - here's one:
https://www.alamy.com/stock-photo-se...-84190886.html (not the one I was thinking of - that has someone being hurriedly removed from the helicopter while it's on the beach, and can be found at the foot of the above linked page)