Flight MH370/2014-03-08/02-03-41 MYT

Event Summary

 02:03:41 MYT Saturday 8 March 2014

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GES initiates a DATA-2 ACARS transmission (uplink), but receives no acknowledgement from the SATCOM. Therefore, the SATCOM Link was lost at sometime between 1707:48 and 1803:41 (UTC).

Event Details

1. Safety Investigation Report MH370/01/2018 Satellite Ground Station Logs - Key Observations

   GES initiates a DATA-2 ACARS transmission (uplink), but receives no acknowledgement from the SATCOM.
   

   1. Therefore, the SATCOM Link was lost at sometime between 1707:48 and 1803:41.
   2. There is no evidence of a cockpit-initiated manual Log-Off of the SATCOM.
   3. Note that even if the on-board ACARs equipment was failed, disabled or powered down at this time, it would not prevent the SATCOM from acknowledging the ACARS-related P-Channel transmissions from the GES.

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Notes

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Start Chron Summary

8 March 2014   02:03:41 MYT

Perth GES initiates a Data-2 ACARS uplink to MH370 but receives no acknowledgement; confirms SATCOM link was lost at some time between 1707:48 and 1803:41 UTC.

End Chron Summary

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

Ground earth station. A satellite ground station sends or receives data from orbiting satellites. (Source: ATSB)

Aircraft Communication and Reporting System

satellite communications from ground to the aircraft earth station

Satellite Communications

Coordinated Universal Time