THIRTY-SECOND TIME WARNING AND FINAL CLEAR TO THE REAR10-34. Once the JM spots the 30-second reference point and is about 30 seconds from the green light, or the safety passes along the loadmaster time warning to the JM: The JM relays the “THIRTY SECONDS,” warning to the jumpers by leaning back, keeping their foot centered on the platform, facing the jumpers, and extending the index finger of their lead hand and announces, “ONE MINUTE.” The jumpers relay the time warning by looking over their shoulder closest to the skin of the aircraft and shouting, “THIRTY SECONDS.”10-35. After the JM has called off the 30-second reference point, they immediately conduct their final clear to the rear outside safety check. The JM leans forward to the elbow locked position while keeping both heels flat on the floor of the cargo compartment and visually conducts a down and behind air-safety check.Note. For a CARP VIRS DZ, the JM is not responsible for positively identifying the DZ, code letter, or color of smoke. The U.S. Air Force and other service aircraft personnel are responsible for positively identifying the DZ, code letter, or color of smoke.