There are two main considerations, if the situation warrants an overweight landing:
- Performance; LDA etc. and in case of a go around.
- Structural. All commercial (FAR/JAR 25) jets are certified with a certain max touchdown g-load equal to approximately 600`/min ROD at Maximum Landing Mass. This load is reduced linearly to approximately 200´/min touchdown ROD at Maximum Takeoff Mass. There are a few exeptions ( e.g. upgraded A340s).
So unless you smash the heavy bird into the ground, the structure is capable of an overweight landing witout major problems. As a rule-of-thumb you can always land on the T/O runway with the same weight.
The decision to wait and burn off fuel or not lies with the risk of loosing a non-redundant system or being on a time critical system only:
- On batteries only: Land
- On fire: Land
- On one engine: Land
- Loss of cabin pressure: Wait
- Gear problems: Wait
So to answer the original question : Do not hurry, but land with the overweight since the conditions are favourable.
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