Originally Posted by
Thedude
We have no way of knowing until the a/c is found.
To my knowledge ACARS does not transmit changes in the FMS to anyone. I am not even sure if that info can be pinged from the aircraft and I am thinking not.
The info "may" be retrievable from NV-RAM in the FMS once the ship is located.
I don't consider the water between Malaysia and Vietnam "open ocean" either. I have flown between KL and HKG many times which is the approximate route and you are in radar most of the way.
JJ21...you are either new or making stuff up.
FMC route data can get sent to ATC through a mode S transponder.
Those pprune folks talk about it here
ADS and CPDLC - PPRuNe Forums
I've always kept any unofficial waypoints out of Legs 1 just for that reason. I've been told that they can actually see what we have in RTE 2 also