Originally Posted by vamuscat
They are in the mid section, just rear of the keel.....
On a relatively high speed impact with a keel boat, usually the major damage is done to the hull immediately aft of the keel... While the single skin hull can absorb a lot of flex (and flex it does, upon impact) the act of flexing can cause the secondary bond of the liner (whether glassed-in or glued together) to fail. The flexing is worst there as the keel 'rocks' on it's rotation axis.
As kd3 points out, a Beneteau-savvy surveyor and or Beneteau themselves can better address the truly structural aspect of this damage. But this is precisely where one would expect to find the most severe (and mostly out-of-sight) damage to the hull in such an event. Fixing the divot in the keel is the easy part.