From https://en.wikipedia.org/wiki/Operation_Paraquet

On the next day, the 15 men of Mountain troop, led by Captain Gavin Hamilton, were airlifted onto Fortuna glacier by two Wessex helicopters. They were immediately confronted with extreme conditions including 100 mph winds and freezing temperatures. Deep crevasses slowed the advance, and when the men attempted to set up camp and wait out the storm, their tents were swept away by the wind. Finally, after 15 hours on the glacier, Captain Hamilton requested evacuation, with the message "Unable to move. Environmental casualties imminent." Three Wessex helicopters were dispatched from the Task Force: two Wessex Mk5s from Tidespring and one Mk3 from Antrim. After one failed attempt, they managed to locate and embark the stranded SAS men, but in whiteout conditions, one pilot became disorientated and his aircraft crashed. The passengers were loaded onto the two remaining helicopters, but soon afterwards one of these hit a ridge and crashed, though once again without any serious casualties. The last Wessex, Antrim′s Mk3, after having offloaded its troops on board the destroyer returned to the glacier and after two failed attempts managed to retrieve the downed SAS and aircrew, though their equipment had to be abandoned. The pilot, Lieutenant Commander Ian Stanley, managed to nurse his overloaded aircraft back to Antrim and make an emergency landing on her flight deck, for which he was later awarded the Distinguished Service Order.[9][10]