How do the sides of the inner approach surface relate to the runway centre line?

The two sides originate at the ends of the inner edge and extend parallel to the vertical plane containing the centre line of the runway.

CS ADR-DSN.H.450 Inner approach surface

Q: What is the stated purpose of the inner approach surface?

To protect final precision approaches.

Q: What are the three limits that comprise the inner approach surface?

(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.

Q: Is the inner edge of the inner approach surface the same as the inner edge of the approach surface?

The inner edge is coincident with the location of the inner edge of the approach surface but has its own specified length.

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CS ADR-DSN.H.450 Inner approach surface

ED Decision 2014/013/R

(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.

(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.

Details

Source-Title: CS ADR-DSN.H.450 Inner approach surface View latest amendments

Erulesid: ERULES-1963177438-2232 Compare versions

Domain: Aerodromes

Activitytype: Aerodrome operations, Aerodrome design, Manufacturing

Amendedby: CS Issue 1

Applicabilitydate: 7 March, 2014

Entryintoforcedate: 6 March, 2014

Icaoreference: Annex 14, Volume I

Regulatedentity: Aerodrome design organisation, Aerodrome operator, Aerodrome equipment manufacturer

Regulatorysource: ED Decision 2014/013/R Navigate

Regulatorysubject: CS-ADR-DSN

Technicalsubjectmatter: Obstacle limitation surfaces/requirements

Typeofcontent: CS (Certification specification)

Easacategory: Non-instrument runway, Non-precision approach runway, Precision approach runway Category I, Precision approach runway Category II, Precision approach runway Category III, Take-off runway

Origin: EASA

Category: EAR

CS ADR-DSN.H.450 Inner approach surface

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