E-59. “The next item I will cover is LIFE PRESERVERS. When jumping a life preserver and you are unable to slip away from the water, activate your life preserver during your third point of performance. Lower but do not jettison combat equipment. Be prepared to execute a proper PLF if the water is shallow. Once in the water, activate both canopy release assemblies.”E-60. “The next item I will cover is NIGHT JUMPS. When conducting night jumps, be sure to give your canopy an extra look. ”If you have any reason to believe you are falling faster than fellow jumpers, immediately activate your reserve parachute. Maintain noise discipline and a good interval between fellow jumpers. Be prepared to conduct a PLF because you will hit the ground approximately five to 10 seconds before you think you will.”