Originally Posted by
hockeypilot44
A lot of times, there is more cargo in weight than the plane can take. Once all the revenue passengers are on, they load the cargo up to the max aircraft weight for the flight. It happens more than you realize on long haul flights. There is zero chance of getting on as a non-rev when this happens.
I was always under the impression that cargo weight restrictions were much more likely when bound for the US from Asia rather than the opposite.