CNN CNN Newsroom January 3, 2015 22:11:00
>> 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: di...