Originally Posted by
mm_flynn
I don't believe that understanding is correct. All available information says that the ACARS system used SatCom. I would be really surprised, having made that decision, MAS then decided not to send the engine data via the same link.
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From way back in the thread.
Malaysian Airways did
not subscribe to Rolls Royce or Boeing health monitoring. ACARS was set up to
only operate over VHF and the only INMARSAT subscription that the airline had was for satellite phone.
ACARS was set up to make routine reports at 30 minute intervals.
There was no connection of any sort between ACARS and SATCOM this was disabled as the company did not want to pay the subscriptions.