|9M-MRO at Paris in 2011|
On 8th March 2014 at 16.41 UTC (7th March), Malaysia Airlines Flight 370 (MH370) - a Boeing 777-200ER (Registration 9M-MRO) - departed Kuala Lumpur (ICAO Location Indicator WMKK) bound for Beijing (ZBAA).
Depending on the precise route, this is a flight distance of around 2380 nautical miles and takes approximately 6 hours. The aircraft would have been expected to reach Beijing by around 22.30 UTC (7th March).
At time 17.19 UTC (7th March) there was a final radio communication between Air Traffic Control and the aircraft. Details of that communication were, after some delay, released by the Malaysian authorities - see Missing plane: pilots' conversations revealed. It may be worth noting the non-standard phraseology used which did not readback the frequency to which the aircraft had been instructed to transfer. (On phraseology see, for example, UK Civil Aviation Authority material). As to who made the final transmission from the aircraft see the report in Telegraph 24th June where it is claimed that the voice was that of the aircraft's captain.
Shortly after this at 17.20 UTC (7th March), the aircraft's transponder