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B772 en route suspected location southern Indian Ocean, 2014

Category: Accidents and Incidents

Description

On the evening of 7 March 2014, a Rolls Royce powered Boeing 777-200 (9M-MRO) being operated by Malaysian Airlines (MAS) on scheduled passenger flight MH370 from Kuala Lumpur to Beijing was reported missing en route at night. It has not yet been possible to locate the aircraft or to establish the circumstances that led to its failure to complete the intended flight. There were 239 people, including 12 crew members, on board the aircraft.

Investigation

An Investigation is being led by the Malaysian Accident Investigation Bureau with assistance from accredited representatives who, in the case of the UK and US are being supported by various expert technical advisers.

It has been established that the aircraft proceeded to climb on the flight planned track after departure and reported having reached its initial cruise level of FL350 some 20 minutes after take off. Just under 20 minutes after that, as the aircraft approached the ACC boundary at waypoint IGARI, it was instructed by Kuala Lumpur ATCC to change to Ho Chi Minh ATCC. The acknowledgment of this instruction was the last R/T call received from the aircraft. It was found that the last ACARS transmission from the aircraft had been received some 26 minutes after take off and that the SSR tag had disappeared from the radar screen at Kuala Lumpur ATCC almost immediately after the acknowledgment of the frequency change had been transmitted. After just over four hours, during which attempts made to locate the aircraft were unsuccessful, the Rescue Coordination Centre (RCC) was opened at 2130Z and SAR operations immediately commenced in the South China Sea.

When a military radar recording was found to show an aircraft which might have been the missing one turning back over Malaysia from the vicinity of the last known position on the ATCC radar, the SAR operation was extended to the area west of the Malaysian Peninsula, the Straits of Malacca.

It was then found that a satellite operated by the British communications company Inmarsat had continued to receive ‘handshake’ messages transmitted automatically by the aircraft after all other contact had been lost. Based on this data and some complex analysis of it, it was deduced that the aircraft had “ended its flight in the southern part of the Indian Ocean” some time after 0019Z on 8 March.

Attempts to locate the aircraft and/or any part of it are continuing, as yet without success. The Investigation notes the current absence of any requirement for real time tracking of aircraft transiting remote areas and that “there have now been two occasions during the last five years when large commercial air transport aircraft have gone missing and their last position was not accurately known”. Because of this the Bureau has made one Safety Recommendation on this subject as follows:

• that the International Civil Aviation Organisation examine the safety benefits of introducing a standard for real time tracking of commercial air transport aircraft.

A Preliminary Report detailing the known facts and progress with the Investigation was completed on 9 April 2014 and published on 1 May 2014.