Originally Posted by
mduell
That's not what I was referring to - I was referring to max landing weight for the planned arrival at IAD. Could be restricted for a variety of reasons.
correct. max landing weight can be a problem on any leg.
as for whether or not these 4 people will have an impact, well, of course that 780lbs will not be the full reason if a plane can land or takeoff, but there are strict guidelines of what the a/c can do and is structurally built for. If you are over by a 1lb or 1,000lb, it wont pass with the FAA.