FLT-D. My apologies, as I read PH's question again; but I'm still not quite sure about it. The title is "SE go around flap retraction altitude". He then goes on to discuss terrain clearance altitude. I do not see the connection. SE flap retraction altitude is a procedure specified by either manufacture or operator, commonly 1000' agl. Climb gradient, SE, upto an altitude before accelerating would be a specific local procedure for obstacle clearance. ZRH comes to mind. Terrain clearance after the go around is for any engine case and depends where you are. Hence, still, my confusion behind the question.