SELF-RESCUE
A fall victim can haul himself out of a crevasse using this method – which makes it suitable for two-man rope teams, for situations where building a solid anchor is impossible or when other members of the rope team do not have the expertise to execute a crevasse rescue using the hauling or pulley techniques. The self-rescue has two phases: In phase 1, you climb little by little towards the lip of the crevasse using the Prusik technique. In phase 2, you switch to a self-pulley system to climb over the lip of the crevasse.
For this self-rescue method you will need two Prusik loops of 180–250cm, one HMS carabiner and two identical snap carabiners.