Cut layup for com panel into flanges. Found flange to be insuficient for support due to limited area between electrical connections. Refabricated flange by using a 1x1 1/8 in aluminum angle. Cut one side of the angle to form mounting flange that fits between the "jacks" on the panel. Used 3 pop rivets to attach the uncut side to the keel behind the fiberglass flange previously made