TULSA - UPDATE: Flight data shows the pilot of doomed Malaysia Airlines Flight MH17 climbed sharply just moments before the plane disappeared from radar.
A tip to KRMG pointed out that the pilot had been cruising at 31,000 feet for a long time before suddenly climbing at a rate of up to 780 feet per minute at 8:01 a.m. Eastern time.
It's unclear what may have led the pilot to make such a drastic maneuver, but it's possible that he had some kind of warning of danger.
A Malayasia Airlines jumbo jet with nearly 300 people aboard disappeared off the radar over Ukraine Thursday, and the Ukrainian government claims it was shot down by separatist rebels.
Flight MH17 was headed from Amsterdam to Kuala Lumpur when it went down in eastern Ukraine, with no survivors.
There were 295 passengers and crew on board, including possibly as many as 22 or 23 Americans and perhaps 80 children.
It happened approximately 4:20 p.m. local time (9:20 a.m. Central).
Ukrainian President Petro Poroshenko reportedly ordered the establishment of a national commission to investigate the disaster.
He issued a statement saying “We do not exclude the possibility that the aircraft was shot down,” and a government spokesman soon leveled the charge that the plane was deliberately shot down.
No one has claimed responsibility for downing the airliner.
Malaysia Airlines Flight 370 disappeared in March en route from Kuala Lumpur to Beijing.
It has not been found.