Helicopter errors

When Birddog takes the COs Huey the crew chief tells him in autorotation to push the collective to get it on the ground. The collective is already down....it's the cyclic he has to push forward to get it on the ground. Also, when the Jolly Green is shot down the CO says he can't get his Huey on the ground because the hydraulics are out. I weigh 110 (female) and have landed many Hueys without hydraulics!