if you have the communication bus fails, no communication, pilots could have navigational abilities, still have the autopilot working, plug in no way points, other points like that. i really believe at this point, i'm really starting to narrow in on a good theory that makes a lot of sense to me, that is that the communication bust itself. how is the pinging, sat com pinging at that point. i'm going to be looking into that. >> you've investigated crashes before. does that theory sound plausible to you? >> it certainly does. the turn seems to me to take it back to a place to land. on that heading, there was a very large, long runway with no obstructions. i do think the pilot certainly had the ability to fight for the flight for a while. we find in so many other accidents statistically speaking, this is what often comes up. have you a malfunction on the