then there was a directive for the fuel tank wiring. >> what does that mean, directive? is that like a recall notice? >> pretty much so. it has the effect of a federal regulation. you must go out and inspect this. >> this specific plane or this model plane? >> this model plane. >> then you get to explosive decompression. does this help with the scenario that we're dealing with of no message from the cockpit? >> yes, when you have an explosive decompression, of course the pilots have occasion general masks, but you have to do it very quickly. at that point, that means you've lost the structural integrity of the plane. that can be from losing a structural member of the plane. you could also lose a door. there was a warning after the