I am a bit curious; under these circumstances is the SOP to fly around to burn off fuel b/c of weight, or land ASAP in case of the risk of a fire in under carriage (e.g. Concord in Paris)?
1) Landing gear fires are only REALLY a problem when they're retracted that way. If they’re hanging in the breeze the usually burn off harmlessly.
2) Over-gross landings are allowable in extremis. Often an overweight landing inspection is required beyond a certain sink rate threshold for airplanes equipped to log this data (the rest just have to do it).
3) You'll sometimes torch the gear somewhat in this situation regardless of landing weight, but obviously lighter is better.
4) Dash Trash are notorious for gear issues. Fokker 100s also had some pretty spectacular failures over the years.
As for this one, looks like a bearing failure or something similar. Essentially a non-event so long as that wheel didn’t hit someone at 100 knots.