Originally Posted by
Bleve
I have often ridden on a flightdeck jumpseat even though I was on the manifest as a passenger.
Yes, hence the bit from my post that you missed out in your quote:
Originally Posted by
DaveReidUK
Once the CVR is found, if it emerges that the engineer was in fact in the jumpseat, then that will likely also reveal whether they were either just there as a courtesy, or in an observer/troubleshooting role.