It, the forces applied at the point of impact when this flaperon separated from the airplane. those fracture surfaces are going to not be optimum because it's been in the water for 17 months and has suffered corrosion. what the information they can extract we're not going to know until the metalurjigists have a chance a look at it. they will get as much information from it as they can. we're going to -- it's going to be a few days before we have an answer to that. >> captain, talk about the challenges we do face. as you talk about corrosion and different things being in the sea water for so lo...