Beneteau First 40.7 Survey at Gosport Boatyard. These popular fast cruiser racers came under the spotlight when a tragic keel failure was attributed to the failure of the internal tray matrix, which is bonded to the hull at manufacture. The bonding of the tray matrix to the hull can be difficult to establish and a marine surveyor must be vigilant, checking for any signs of movement, cracking, repairs, internal moisture and careful hammer sounding around the matrix structure.