According to tracking data, an Indonesia airliner carrying 189 people crashed into the ocean at about 350 miles per hour. Everyone aboard is feared dead.
The plane dropped from 4850 feet of altitude to impact the ocean within 21 seconds.
The speed recorded by FlightRadar, 30,976 feet per minute, was the normal cruising pace for the plane on a short trip. But on descent, it was equivalent to the pilots gunning the engines as the plane roared downward.
“This thing really comes unglued,” Cox told Bloomberg. “The numbers are barely believable.”
Such behavior would be unusual for modern, computer-piloted aircraft, Bloomberg News reported. Many control systems, and many back-ups, would need to fail simultaneously for the plane to behave in that fashion. One possible inference would be a multi-function failure, possibly linked to electronics system.
Possible Warning
Yusuf Latif, a spokesman for Indonesia’s search and rescue agency, said the Lion Air flight lost contact 13 minutes after takeoff. Latif said the crew of a tugboat in Jakarta harbor had seen the plane falling.“It has been confirmed that it has crashed,” Latif said by text message.
Flight JT610 took off from Jakarta around 6.20 a.m. and was due to have landed in the capital of the Bangka-Belitung tin mining region at 7:20 local time a.m., the FlightRadar 24 website showed.
Bloomberg reported that one of Flight JT610’s pilots had requested permission to return to the Jakarta airport shortly after takeoff, so it is possible that the crew could see that some systems were malfunctioning.
Steve Wallace, former head of the U.S. Federal Aviation Administration’s accident investigations division, told Bloomberg he was mystified by the plane’s behavior. The data didn’t match any accident he had seen, and he could not imagine exactly what had gone wrong to bring down the airliner.
“I have no most likely scenario in my head for this accident,” Wallace said.
“The flight and voice recorders will be absolutely essential.”
The plane’s black boxes have not been found at the time of reporting, although Indonesian officials have said that they don’t expect it to take long to find then in the shallow 25-30 meter (80-100 feet) waters into which the plane crashed. The two boxes, one housing a sound recording from the cockpit and the other logging thousands of data parameters, will give crash investigators a much better picture of what happened to the almost-new jet.