EXEMPTION FROM SUBSECTION 5.2.5.3 of THE AERODROME STANDARDS AND RECOMMENDED PRACTICES (TP 312, 4th Edition) MADE PURSUANT TO SUBPARAGRAPHS 302.07(1)(a)(i) and (ii) OF THE CANADIAN AVIATION REGULATIONS

Pursuant to subsection 5.9(2) of the Aeronautics Act, and after taking into account that the exemption is in the public interest and is not likely to affect aviation safety, I hereby exempt all Canadian Aerodrome Operators, from the requirements of subsection 5.2.5.3 of The Aerodrome Standards and Recommended Practices (TP 312, 4^th Edition) made pursuant to subparagraphs 302.07(1)(a)(i) and (ii) of Part III, Subpart 2 of the Canadian Aviation Regulations, subject to the following conditions.

Subsection 5.2.5.3 of The Aerodrome Standards and Recommended Practices stipulates that the aiming point marking shall commence no closer to the threshold than the distance indicated in the appropriate column of Table 5-1 attached hereto as Schedule "A".

PURPOSE

The purpose of this exemption is to allow Canadian aerodrome operators to position the aiming point markings based on landing distance available rather than by runway code as shown in Table 5-1 of The Aerodrome Standards and Recommended Practices (TP312, 4^th Edition), in accordance with the provisions of Annex14, Volume 1, subsection 5.2.5.4 of the Convention on International Civil Aviation, attached hereto as Schedule "B", pending formal amendment of the Canadian standards.

APPLICATION

This exemption applies to all Canadian aerodrome operators in order to allow the positioning of the aiming point markings based on landing distance available rather than by runway code as presented in Table 5-1 of The Aerodrome Standards and Recommended Practices (TP312, 4^th Edition), in accordance with the provisions of Annex 14, Volume I, of the Convention on International Civil Aviation.

CONDITIONS

The exemption shall be subject to the following conditions:

1. The aiming point marking shall commence no closer to the threshold than the distance indicated in the following table :

Table 1 - Location of Aiming Point Markings

Runway Landing Distance Available	Less than 800 m	800 m up to but not including 1 200 m	1 200 m up to but not including 2 400 m	2 400 m and above
Distance from threshold to beginning of marking	150 m	250 m	300 m	400 m

2. A copy of the exemption document shall be inserted in the Airport Operations Manual.

VALIDITY

This exemption is in effect until the earliest of the following:

1. EST at midnight on December 01, 2004;

2. the date on which any of the condition set out in this exemption is breached;

3. the date on which an amendment to the appropriate provisions of the Canadian Aviation Regulations and related standards comes into effect; or

4. the date on which the exemption is cancelled by the Minister, in writing, where he is of the opinion that it is no longer in the public interest, or that it is likely to affect aviation safety.

Dated at Ottawa, this 27 day of October 2003, on behalf of the Minister of Transport.

Original signed by

Jennifer J. Taylor, Director
Air Navigation Services and Airspace
Aerodrome Safety

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SCHEDULE "A"

TP312, 4^th edition

Aerodrome Standards and Recommended Practices

Subsection 5.2.5.3

5.2.5.3 Standard.- The aiming point marking shall commence no closer to the threshold than the distance indicated in the appropriate column of Table 5-1.

Table 5-1. Location and Dimensions of the Aiming Point Markings

Location and Dimensions	Code Number
	1	2	3	4
Distance from the threshold to beginning of marking	150 m	250 m	300 m	400 m
Length of stripe a	30 – 45 m	30 – 45 m	45 – 60 m	45 – 60 m
Width of stripe	4 m	6 m	6 – 10 m b	6 – 10 m b
Lateral spacing between inner sides of stripes	6 m	9 m	18 – 22.5 m	18 – 22.5 m
a. The greater dimensions of the specified ranges are intended to be used where increased conspicuity is required. b. The lateral spacing may be varied within these limits to minimize the contamination of the marking by rubber deposits.

SCHEDULE "B"

ICAO Annex 14, Volume I, 3^rd edition

International Aerodrome Standards and Recommended Practices

Subsection 5.2.5.4

5.2.5.4 The aiming point marking shall commence no closer to the threshold than the distance indicated in the appropriate column of Table 5-1, except that, on a runway equipped with a visual approach slope indicator system, the beginning of the marking shall be coincident with the visual approach slope origin.

Table 5-1. Location and dimensions of aiming point marking

 

	Landing distance available
Location and dimensions (1)	Less than 800 m (2)	800 m up to but not including 1 200 m (3)	1 200 m up to but not including 2 400 m (4)	2 400 m and above (5)
Distance from the threshold to the beginning of marking	150 m	250 m	300 m	400 m
Length of stripea	30-45 m	30-45 m	45-60 m	45-60 m
Width of stripe	4 m	6 m	6-10 mb	6-10 mb
Lateral spacing between inner sides of stripes	6 mc	9 mc	18-22.5 m	18-22.5 m
a. The greater dimensions of the specified ranges are intended to be used where increased conspicuity is required. b. The lateral spacing may be varied within these limits to minimize the contamination of the marking by rubber deposits. c. These figures were deduced by reference to the outer main gear wheel span which is element 2 of the aerodrome reference code at Chapter 1, Table 1-1.

Date de modification :

2006-01-2