>> aki was a banker, he was traveling on business that day. it was a very humid, hot, japanese summer day. from the moment i opened my eyes that day, and aki did too, there was a hint of something wrong, which i couldn't explain. >> also on board, takashi's sister, sumako. >> reporter: she did tell me she's going to tokyo. i said to her, it's dangerous to fly. she told me, don't worry, brother, i've already bought a ticket. >> you're looking at footage of the actual plane involved in this crash, taking off on its final ill-fated flight. 6:12 p.m., everything seems normal as the plane lifts off and climbs out. suddenly, 12 minutes into the flight, there's a problem.