was returned, that he had other things on his mind. he had repeated all the instructions previously and he did not at the critical moment. >> you don't necessarily agree there's anything significant in that. do you think there's credence to anything arthur just said? >> yes. one of the important things that arthur does make is because the co-pilot or the pilot not flying doesn't say that there's a mechanical or there's a fire, he doesn't give any warning in this crucial 1:07 to 1:19 period, it makes it look more difficult that something was happening. where i take issue with arthur is his leap into assuming that something was going on nefarious at that time. >> jim tilmon, we learned today that the pilot made a call from his cell phone before the plane departed. is there anything unusual about that? did you as a pilot, i don't know if it was cell phones, but would people call. anything unusual about what he