Airbus has certified the A340 for landing up to MTOW. No inspection is required if landing is normal (on main gear, no significant side loads, etc) up to 1.4g, about 360 fpm. The landing loads are recorded on the DFDR. They also recommend 5000 ft AGL min in order for fuel to evaporate as much as possible, and don't dump in a short holding pattern, as JET A will sink at about 500 fpm.