Joint Agency Coordination Centre of contact for information about the search for media and families of Flight 370 passengers. On 8 March 2014, Malaysia Airlines Flight 370 disappeared en route from Kuala Lumpur, Malaysia to Beijing, China with 239 persons aboard; a search in the South China Sea and Gulf of Thailand was promptly initiated near the aircraft's last voice contact with air traffic control and final contact with secondary radar (the type of radar used by air traffic control). A week after the disappearance, Malaysia announced that military radar determined that the aircraft had traveled west across the Malay Peninsula after being lost
Malaysia Airlines Flight 370 search of the sea-floor near the detections was carried out between 14 April and 28 May without any sign of Flight 370. In a March 2015 report, it was revealed that the calendar life of the battery for the ULB attached to Flight 370's flight data recorder had expired in December 2012 and may not have been as capable. In late June 2014, details of the next phase of the search were announced; officials have called this phase the "underwater search", despite the previous seafloor sonar survey. Continued refinement of the analysis of Flight 370's satellite communications identified a "wide