This may also create a hassle for pilots, since this information is used to calculate weight, which in turn is used to plan many things related to the flight.

This may also create a hassle for pilots, since this information is used to calculate weight, which in turn is used to plan many things related to the flight. Now there's enough safety margins here that one person or a dozen aren't going to create any real-life problems, but if your systems have enough of these issues and other checks fail, on some flight they might very well finally add up to something more serious. Likely there will just be an investigation because the takeoff weight was seriously wrong[1], but there have also been crashes in the past[2]. [1] https://avherald.com/h?article=4e59311c https://avherald.com/h?article=4e59311c [2] https://en.wikipedia.org/wiki/Air_Midwest_Flight_5481 https://en.wikipedia.org/wiki/Air_Midwest_Flight_5481