A dispute is settled with a record instead of a recollection
Every change to a load, a vehicle or a rule is written down with what it looked like before, what it looks like after, who made it, and when.
Why this is different
Most systems record that something was changed, not what it was changed from. Two years later that tells you a change happened and nothing at all about whether the load was legal when it left the yard.
The question is what the drive axles read at the moment the load was dispatched, and whether anyone edited the weights afterwards. The record shows the load at dispatch with 33,900 lb on the drives, and a weight edit made two days later by a named person. Both facts sit in the same place, and neither depends on anyone's memory.

