10-24. The JM will conduct a proper door safety check in the following manner: They grasp the lead edge of the door with their lead hand and transfers control of their USLM to the safety. (See figure 10-8, and figure 10-9 on page 10-12.) They then grasp the trail edge of the door with their trail hand centering their body in the door without having any part of their feet on the jump platform. Using only the lead hand, they ensure the push in place pin is in place, securing the jump door in the open position on the C-130.Note. The JM must ensure the safety has positive control of the USLM before moving toward the paratroop door.