and from the fredric j. ridel living trust. ♪ ♪ >> on the morning of october 29, i was woken up by a colleague who alerted me that a lion aircraft crashed. he said, "it's the max," and i was surprised, because it was a new aircraft. my company provided the air data for aircraft flying around the jakarta area. so i went to the computer and looked at the data. it was immediately apparent that, okay, something was wrong. (indistinct radio chatter) the plane went up to about 2,000 feet, just over a minute after takeoff, and the plane had a bit of a dive. and then the plane climbed to about 5,000 feet. (indistinct radio chatter) but then, at 5,000 feet, the plane was fluctuating up and down. and then the plane just started diving. it, it just didn't make sense. you don't see planes diving on departure. i was baffled. why did it go down? ♪ ♪ >> lion air flight jt610 went missing from radar... >> narrator: 189 people were killed in the crash of lion air flight 610. >> the boeing 737 max 8... >> narrator: the plane was a new boeing 737