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Timeline of Malaysia Airlines Flight MH370 flight disappearance

The Associated Press

The sequence of events surrounding the disappearance of Malaysia Airlines Flight 370:

- March 8, 12:41 a.m. The plane carrying 239 people leaves Kuala Lumpur heading to Beijing.

- 1:07 a.m. ACARS transmits its regular, half-hourly data report about the jet's engines and other data to the airline.

- 1:19 a.m. Someone, apparently the co-pilot, makes the final voice communication from the cockpit, saying "All right, good night" to air-traffic controllers.

- 1:20 a.m. The transponder shuts down, removing the plane's identification on commercial radar systems.

- 1:37 a.m. An ACARS data transmission is due, but never sent.

- 2:14 a.m. The plane is last seen on military radar, heading west over the Strait of Malacca.

- 8:11 a.m. A satellite records a faint, final "ping" from the disabled ACARS system. A broad arc of the jet's possible location stretches from Kazakhstan into the southern Indian Ocean.

- About 8:40 a.m. The estimated end of the jet's fuel supply.

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Bobert March 17 2014 at 4:29 PM

Missing from the time line is the time for the last ADS-B transmission to be recieved by either flightaware or flightradar24.

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1 reply
Tara Sawyer Bobert March 17 2014 at 4:38 PM

pardon my ignorance but what does that mean?

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1 reply
Karen Lynn Tara Sawyer March 17 2014 at 4:57 PM

Means Malaysia is still not releasing everything they know about this flight.

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Bobert March 17 2014 at 4:42 PM

The last ADS-B (Automatic dependent surveillance-broadcast) was recieved by flightaware monitors at 1:02
The last ADS-B recieved by flightradar25.com moitors was some 15 minutes later - verify if possible?

The ADS-B system broadcasts every 30 seconds the aircraft position, heading, air speed, altitude, anand rate of ascent/decent.

With the transponders "off", the ADS transmissions are the only continous broadcast of position etc.

But just because the transmissions were not recieved, does not necessarily indicate that the system was "off", just that the transmissions were not monitored.

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Bobert March 17 2014 at 4:51 PM

Waiting for the 7:11 and 6:11 pings from the Satcom. If Inmarsat can calculate the angle as they did with the 8:11 handshake request, that will help refine the search arcs.
If the angles are the same, means the aircraft was following existing arc (not likely) or the aircraft is stationary. If the angles are different, that would suggest that the aircraft was airborne and moving either towards the satellite or away from the satellite, in either case will describe a new arc.

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Mr. T March 18 2014 at 1:14 AM

Unfortunately, I don't believe that we've obtained any remarkable new information since mid-day Saturday. In the absence of the discovery of a debris field, or some new evidence (ADS-B transmissions?) to narrow the huge potential search area, I would estimate that the probability of locating the downed 777 in the remaining three weeks (approx.) before the flight recorder stops pinging is less than 20%. We can only hope the Malaysian government is merely incompetent, and not purposely concealing material facts to impede a fruitful search by all the international assets that are deployed, and a thorough investigation to identify the likely perpetrators.

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3 replies
paradoxp March 18 2014 at 12:04 AM

I am a licensed Commercial Pilot. Shortly after I learned to fly my first small plane, I knew how to use a transponder and how to turn it off. There is a knob on the front of the transponder unit that can easily be turned to the "off" position. Why do your reports keep saying that it would require someone with highly sophisticated knowledge to turn off the transponder on a 777 or any other aircraft, for that matter?

Completely disabling the ACARS system would be another matter, of course, as this would require not only sophisticated knowledge of the 777 but a trip down through the trap door in the floor and a knowledge of which circuit breaker to turn off once down there.

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3 replies
Ellen March 18 2014 at 12:11 PM

I feel bad for all the people who were on that plane, the plane is big to just dissapear

Hope an Pray they locate it soon

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MARGARITA!! March 17 2014 at 7:45 PM

Unfortunately there are no cell towers out in the ocean, and whatever transmitting equipment on the plane was turned off, possibly for that reason. Otherwise they could ping the phones and find it fairly quickly. Horrible tragedy.

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ae12wrangell March 18 2014 at 12:16 PM

370 is in North Korea, OR some body of water that nobody has checked yet.

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zaffutoky1 March 17 2014 at 7:48 PM

If the pilot or co-pilot were radicalized, it's possible that they could have made advance arrangements with other terrorists on an island, country, etc., that had a remote landing strip and hangar that could have accommodated the 777. If this is the case, it will be a very long time before we find out what really happened.

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pfaucetpfixxer March 17 2014 at 10:43 PM

It means that the pilot and copilot were in some heavy duty crap and wanted to make a statement by hijacking a plane and passengers. But something went terribly wrong and they had to ditch that plane in the ocean. Unfortunately, no one was able to make it out alive after impact and that jet simply sank in some incredibly deep water in the Indian Ocean, off the coast of Sri Lanka. Sorry for the families and their loss.

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