Timeline/NIO-SIO/0915:56 MYT

MH370 DECODED
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Event Summary

09:15:56 MYT Saturday, 8 March 2014

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Log-On Interrogation by the Perth GES, with no response from the SATCOM


Event Details

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

    Log-On Interrogation by the Perth GES, with no response from the SATCOM

    1. The SATCOM Link was lost at sometime between 0019:37 and 0115:56.
    2. There is no evidence of a cockpit-initiated manual Log-Off of the SATCOM.
    3. The loss of SATCOM link was due to one of the following:
      1. The SATCOM stopped receiving the P-Channel transmission from the satellite
      2. SATCOM input power (115VAC 400Hz) was removed
      3. The SATCOM experienced a BITE failure.




Notes

  1. Source: Safety Investigation Report MH370/01/2018 2.5.1 Summary of Key Observations of the SATCOM Ground Station Logs

    12) The last transmission received from the SATCOM occurred at 0019 on 08 March 2014 and the SATCOM failed to respond to a series of three Log-On interrogations starting at 0115 on 08 March 2014. This implies that the SATCOM probably became inoperative at sometime between 0019 and 0115 on 08 March 2014.