CS ADR-DSN.J.480 Precision approach runways

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CS ADR-DSN.J.480 Precision approach runways

ED Decision 2017/021/R

(a) The following obstacle limitation surfaces should be established for a precision approach runway Category I:

(1) conical surface;

(2) inner horizontal surface;

(3) approach surface; and

(4) transitional surfaces.

(b) The following obstacle limitation surfaces should be established for a precision approach runway Category II or III:

(1) conical surface;

(2) inner horizontal surface;

(3) approach surface and inner approach surface;

(4) transitional surfaces and inner transitional surfaces; and

(5) balked landing surface.

(c) The heights and slopes of the surfaces should not be greater than, and their other dimensions not less than, those specified in Table J-1, except in the case of the horizontal section of the approach surface in paragraph (d) below.

(d) The approach surface should be horizontal beyond the point at which the 2.5 % slope intersects:

(1) a horizontal plane 150 m above the threshold elevation; or

(2) the horizontal plane passing through the top of any object that governs the obstacle clearance limit;

whichever is the higher.

(e) Fixed objects should not be permitted above the inner approach surface, the inner transitional surface or the balked landing surface, except for frangible objects which because of their function should be located on the strip. Mobile objects should not be permitted above these surfaces during the use of the runway for landing.

(f) New objects or extensions of existing objects should not be permitted above an approach surface or a transitional surface except when the new object or extension would be shielded by an existing immovable object.

(g) New objects or extensions of existing objects should not be permitted above the conical surface and the inner horizontal surface except when an object would be shielded by an existing immovable object, or if after a safety assessment, it is determined that the object would not adversely affect the safety or significantly affect the regularity of operations of aeroplanes.

(h) Existing objects above an approach surface, a transitional surface, the conical surface and inner horizontal surface should, as far as practicable, be removed except when an object would be shielded by an existing immovable object, or if after a safety assessment, it is determined that the object would not adversely affect the safety or significantly affect the regularity of operations of aeroplanes.

APPROACH RUNWAYS
RUNWAY CLASSIFICATION
Surface and dimensions^a	Non-instrument Code number				Non-precision approach Code number			Precision approach category
Surface and dimensions^a	Non-instrument Code number				Non-precision approach Code number			I Code number		II or III Code number
	1	2	3	4	1, 2	3	4	1, 2	3, 4	3, 4
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)	(11)
CONICAL
Slope	5 %	5 %	5 %	5 %	5 %	5 %	5 %	5 %	5 %	5 %
Height	35 m	55 m	75 m	100 m	60 m	75 m	100 m	60 m	100 m	100 m
INNER HORIZONTAL
Height	45 m	45 m	45 m	45 m	45 m	45 m	45 m	45 m	45 m	45 m
Radius	2 000 m	2 500 m	4 000 m	4 000 m	3 500 m	4 000 m	4 000 m	3 500 m	4 000 m	4 000 m
INNER APPROACH
Width	-	-	-	-	-	-	-	90 m	120 m^e	120 m^e
Distance from threshold	-	-	-	-	-	-	-	60 m	60 m	60 m
Length	-	-	-	-	-	-	-	900 m	900 m	900 m
Slope	-	-	-	-	-	-	-	2.5 %	2 %	2 %
APPROACH
Length of inner edge	60 m	80 m	150 m	150 m	140 m	280 m	280 m	140 m	280 m	280 m
Distance from threshold	30 m	60 m	60 m	60 m	60 m	60 m	60 m	60 m	60 m	60 m
Divergence (each side	10 %	10 %	10 %	10 %	15 %	15 %	15 %	15 %	15 %	15 %
First section
Length	1 600 m	2 500 m	3 000 m	3 000 m	2 500 m	3 000 m	3 000 m	3 000 m	3 000 m	3 000 m
Slope	5 %	4 %	3.33 %	2.5 %	3.33 %	2 %	2 %	2.5 %	2 %	2 %
Second section
Length	-	-	-	-	-	3 600 m^b	3 600 m^b	12 000 m	3 600 m^b	3 600 m^b
Slope	-	-	-	-	-	2.5 %	2.5 %	3 %	2.5 %	2.5 %
Horizontal section
Length	-	-	-	-	-	8 400 m^b	8 400 m^b	-	8 400 m^b	8 400 m^b
Total length	-	-	-	-	-	15 000 m	15 000 m	15 000 m	15 000 m	15 000 m
TRANSITIONAL
Slope	20 %	20 %	14.3 %	14.3 %	20 %	14.3 %	14.3 %	14.3 %	14.3 %	14.3 %
INNER TRANSITIONAL
Slope	-	-	-	-	-	-	-	40 %	33.3 %	33.3 %
BALKED LANDING SURFACE
Length of inner edge	-	-	-	-	-	-	-	90 m	120 m^e	120 m^e
Distance from threshold	-	-	-	-	-	-	-	c	1 800 m^d	1 800 m^d
Divergence (each side)	-	-	-	-	-	-	-	10 %	10 %	10 %
Slope	-	-	-	-	-	-	-	4 %	3.33 %	3.33 %
a. All dimensions are measured horizontally unless specified otherwise. b. Variable length (CS ADR-DSN.J.475(c) or CS ADR-DSN.J.480(d)). c. Distance to the end of strip. d. Or end of runway whichever is less.					e. Where the code letter is F (Code element 2 of Table A-1), the width is increased to 140 m.

Table J-1. Dimensions and slopes of obstacle limitation surfaces — Approach runways

[Issue: ADR-DSN/3]

[Issue: ADR-DSN/4]

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Source-Title: CS ADR-DSN.J.480 Precision approach runways View latest amendments

Erulesid: ERULES-1963177438-2238 Compare versions

Domain: Aerodromes

Activitytype: Aerodrome operations, Aerodrome design, Manufacturing

Amendedby: CS Issue 4

Applicabilitydate: 12 December, 2017

Entryintoforcedate: 11 December, 2017

Icaoreference: Annex 14, Volume I

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

Regulatorysource: ED Decision 2017/021/R Navigate

Regulatorysubject: CS-ADR-DSN

Technicalsubjectmatter: Obstacle limitation surfaces/requirements

Typeofcontent: CS (Certification specification)

Easacategory: Precision approach runway Category I, Precision approach runway Category II, Precision approach runway Category III

Origin: EASA

Category: EAR

CS ADR-DSN.J.480 Precision approach runways

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