Originally Posted by
rehoult
Actually, according to the Tariff that you bought the ticket under, that is EXACTLY what you have to do. Nowhere do they guarantee of the type of plane that will operate a given flight.
Want to see it in action? Search this forum for people who booked specific North American J flights to get the pod and see how AC responded when a narrow-body was subbed in.
To confirm the above posting, I was once confirmed in J to MAD (several yrs ago) and the flight was downgraded to a 763 and my seat turned out to be the crew rest seat. So I was bumped and not a happy camper.
But thankfully AC gate crew came on board and removed another up/grade who was not a SE as I am a SE. I felt badly but rules are rules.
So equipment changes do happen and you will never know till you board the flight.