I once had a flight where the plane's fuel gauge was broken, so the pilots had no way of knowing how much fuel was on board nor could they do any weight calculations because of it. Instead, the number on passengers allowed to board was severely limited. If that happened at BOS, maybe they just found it easier to swap aircraft.
The fight I referenced was on an RJ, fyi.
Last edited by DavidDTW; Jul 30, 2018 at 8:46 pm
Reason: To clarify type of plane