Malaysia Airlines Flight 370 information about Flight 370; he opined that, based on known information, "MH370 never left Malaysian airspace." The watch supervisor at Kuala Lumpur ACC activated the Kuala Lumpur Aeronautical Rescue Coordination Centre (ARCC) at 05:30, more than four hours after communication was lost with Flight 370. The ARCC is a command post at an Area Control Centre that coordinates search-and-rescue activities when an aircraft is lost. Malaysia Airlines issued a media statement at 07:24 MYT, one hour after the scheduled arrival time of the flight at Beijing, stating that communication with the flight had been lost by Malaysian ATC at 02:40
Malaysia Airlines Flight 370 of Flight 370 "just after [01:30]" using the international distress frequency to relay Vietnamese air traffic control's request for the crew to contact them; the captain said he was able to establish communication, but only heard "mumbling" and static. Calls made to Flight 370's cockpit at 02:39 and 07:13 were unanswered but acknowledged by the aircraft's satellite data unit. At 01:20:31 MYT, Flight 370 was observed on radar at the Kuala Lumpur ACC as it passed the navigational waypoint IGARI () in the Gulf of Thailand; five seconds later, the Mode-S symbol disappeared from radar screens. At 01:21:13, Flight 370