High loads: Loads can cause serious injuries to crewmen who are required to climb to the top of the load to affect hookup. They may be inadvertently swept off the top of the load by the rotor wash or find it necessary to jump in order to avoid a dangerous situation. (Crewmen on top of a load must pay particular attention to where they stand. If at all possible, do not stand on the top. Stand on a lower projection or step so that should the aircraft make contact with the load, they are not caught in between). The crew should work from a crouched position or from their hands and knees. If possible, have a vehicle backed up to the load that can be used as a working platform. (Move the vehicle prior to lifting the load). The crew should use solid footholds and handholds and be ready to clear the load immediately.