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Being an imaginary surface consisting of a common plane established at a constant elevation of forty-five (45) metres above the elevation of the Airport Zoning Reference Point, except that where the common plane is less than nine (9) metres above the ground at any point, the outer surface is an imaginary plane located at nine (9) metres above the ground, which outer surface is shown on Public Works and Government Services Canada Goose Bay Airport Zoning Plan No. S-4006, dated February 11, 2000.
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