Originally Posted by
Softpayman
I'm thinking a lot of this info is coming off the ADS-B. It looks like among the info it sends is a sort of Position report including next waypoints. If you had reprogrammed your 2nd and 3rd next fixes it would appear here. And it sounds like it was there 12 mins prior to the final ATC transmission.
Yeah over the north Atlantic there have been violations attempted for aircraft that received coast-in reroutes but didn't get the FMC programed before hitting an automatic reporting point. The charge is "incipient navigation blunder" which is crap because the aircraft is still hundreds of miles from the new turn and on the cleared course. I know that's not ACAARS pushing that info.