Factual Information 2015:1.1 History of the Flight/1.1.3/e

e) Thailand Radar

The radar position symbol with SSR transponder code A2157 was detected on Aeronautical Radio of Thailand Limited (AEROTHAI) radar display at 1711 UTC (0111 MYT) as the aircraft was tracking for waypoint IGARI. Thailand DCA is a government agency whereas AEROTHAI is a state enterprise under the Ministry of Transport and Communications. AEROTHAI is the air navigation service provider responsible for the provision of Air Traffic Services within Bangkok Flight Information Region (FIR).

As the flight plan of MH370 did not fall under Thailand’s FIR Bangkok ATCC did not pay much attention to this flight.

On playback of the radar recording it was noted that the radar position symbol of A2157 disappeared at 1721:13 UTC (0121:13 MYT).

Secondary Surveillance Radar - A surveillance radar system which uses transmitters/receivers system (interrogators) and transponders.

SSR transponder code A2157 allocated to Flight MH370

AEROTHAI is the air navigation service provider responsible for the provision of Air Traffic Services within the Bangkok Flight Information Region (FIR)

Coordinated Universal Time

Malaysian Time (MYT) is Coordinated Universal Time (UTC) + 8 hours

A predetermined geographical position that is defined in terms of latitude and longitude coordinates, used for navigation. More Info

Waypoint Country SG Latitude 6° 56' 10.00" N Longitude 103° 35' 6.00" E More Info

Department of Civil Aviation (Malaysia)

Flight Information Region

Air Traffic Control Centre