had-enough
If you look at the QRH procedure for Overweight landing,there are two main concerns:first,the go around limit weight,and second,the touchdown rate,max 360 fpm.The Go around limit weight is largely superior to MTOW,under normal circunstances,so if you follow the procedure correctly you will not have any problem landing the plane.Max landing weight means the max weight you may land the plane in normal operation,otherwise if you have an emergency - and ONLY in an emergency -you may follow the overweight landing procedure.Remember : on the A340,the jettison rate is 1000 kg/minute,so it takes a lot of time to get rid of 50 tons of fuel!!!
The other day,flying from GIG to LIS I had to land at REC due to a very serious medical emergency,where time was vital.By the time we touched down,we were 17 tons above max ldg wt,the plane very stable,perfectly smooth landing.A preliminary inspection was carried out locally,no problem reported.Back at home base,the manufacturer was informed,no special procedure required