fitting that had a leak on it. what was connected to the angular fitting, wasn't anal to see. but an a ghchlt gular fitting did have a leak. >> the mechanisms that control the blow-out preventer. if they don't work, the blow-out preventer doesn't work. a leak, even if only a trickle, is a warning. >> yeah. abnormal. >> abnormal enough that you reported it to your company, to transocean, to bp? >> that's correct. >> one pod is always working. the other, says university of texas petroleum engineer, ted pazack, is designed as its immediate backup. >> i don't think there's any discussion of that basic fact. and the basic fact is that you have to do whatever it takes to fix fully the blow-out preventer as soon as you can. >> he says the solution is to immediately close off the well, raise the blow-out preventer, find out what's wrong and fix