one thing you don t want to do is add more tragedy to tragedy. you don t want more loss of life. you want to plan your time and wait for optimal condition go in there. reporter: the plane is believed to be at the bottom of the sea and at that depth they ll need to use special gear. it s dry sealed at the wrists and the boots are incorporated and the zipper closes at the neck. that way no water gets in there. then what you have is a helmet. this is a 17 super light. reporter: this considered a lighter one. yes. reporter: but it s incredibly heavy. 37 pounds. reporter: divers will also be hooked up to a command center like this one. these instruments right here are telling us what the depth of the divers are at. and this is the pressure of the air going through them. the main air. standby air. emergency air. diver one. diver, two, diver three, which is your safety diver. reporter: garhe says the divers