Time:0107:29 MYT/Notes
After the position report was sent at 01:07:29 MYT there were no further ACARS transmissions from the aircraft.
Source: Safety Investigation Report MH370/01/2018 2.5.1 Summary of Key Observations of the SATCOM Ground Station Logs
7) No Data-2 Aircraft Communications Addressing and Reporting (ACARS) traffic was observed after 1707 on 07 March 2014.
Source: Safety Investigation Report MH370/01/2018 2.4.4 Aircraft Systems Analysis (page 377)
All programmed communications via ACARS prior to 1707:29 UTC were working satisfactorily.
After this last automatic ACARS transmission over the SATCOM, either the ACARS was turned off or the AIMS had a fault that prevented ACARS transmissions while certain other functions such as inertial data forwarding did not appear to be significantly affected.