CS ADR-DSN.H.450 Inner approach surface

(a)Applicability: The purpose of the inner approach surface is to protect final precision approaches.

(b)Description: A rectangular portion of the approach surface immediately preceding the threshold.

(c)Characteristics: The limits of the inner approach surface should comprise:

(1)an inner edge coincident with the location of the inner edge of the approach surface but of its own specified length;

(2)two sides originating at the ends of the inner edge and extending parallel to the vertical plane containing the centre line of the runway; and

(3)an outer edge parallel to the inner edge.