A group of troops of 602th Commando Company descended from a helicopter of the Argentine Army in the vicinity of Mount Simon. Its mission was to install an observation post to monitor the movements of the English troops that had landed in San Carlos. The commandos reached the crest of the mountain and from there, they could see a corridor of Chinook helicopters that supplied the British vanguard. They tried to communicate by radio and report British movements, but interference prevented them, and in fact, the enemy's electronic detectors discovered them.