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clean surfaces. If it is not possible to clean a surface before
testing, then for purposes of preparing an initial report a test
could be made on a portion of clean surface in the c m a l part
of the runway.
7.3 Friction tests of existing surface conditions should be
taken periodically in order to identify runways with low
friction when wet. A State should define what minimum
friction level it considers acceptable before a runway is
classified as slippery when wet and publish this value in the
State's aeronautical information publication (AIP). When the
friction of a runway is found to be below this reported value,
then such information should be promulgated by NOTAM,
The State should also establish a maintenance planning level,
below which, appropriate corrective maintenance action
should be initiated to improve the friction. However, when the
friction characteristics for either the entire runway or a portion
thereof are below the minimum friction level, corrective
maintenance action must be taken without delay. Friction
measurements should be taken at intervals that will ensure
identification of runways in need of maintenance or special
surface treatment before the condition becomes serious. The
time interval between measurements will depend on factors
such as: aircraft type and frequency of usage, climatic conditions,
pavement type, and pavement service and maintenance
requirements.
7.4 For uniformity and to permit comparison with other
runways, friction tests of existing, new or resurfaced runways
should be made with a continuous friction measuring device
provided with a smooth tread tire. The device should have a
capability of using self-wetting features to enable measurements
of the friction characteristics of the surface to be made
at a water depth of at least 1 mm.
7.5 When it is suspected that the hction characteristics of
a runway may be reduced because of poor drainage, owing to
inadequate slopes or depressions, then an additional test
should be made, but this time under natural conditions representative
of a local rain. This test differs from the previous
one in that water depths in the poorly cleared areas are
normally greater in a local rain condition. The test results are
thus more apt to identify problem areas having low friction
values that could induce aquaplaning than the previous test. If
circumstances do not permit tests to be conducted during
natural conditions representative of a rain, then this condition
may be simulated.
ATT A-6
No. 7

COVER SHEET TO AMENDMENTS 8 AND 9
INTERNATIONAL STANDARDS
AND RECOMMENDED PRACTICES
AERODROMES
ANNEX 14
TO THE CONVENTION ON INTERNATIONAL CIVIL AVIATION
VOLUME I
AERODROME DESIGN AND OPERATIONS
FOURTH EDITION — JULY 2004
INTERNATIONAL CIVIL AVIATION ORGANIZATION
Checklist of Amendments to Annex 14, Volume I
Effective date
Date of
applicability
Fourth Edition
(incorporates Amendments 1 to 6) 12 July 2004 25 November 2004
Amendment 7
(adopted by the Council on 2 March 2005) 11 July 2005 24 November 2005
Amendment 8
(adopted by the Council on 14 March 2006)
Replacement pages (iii), (vi), (vii), (ix), (x), (xi), (xii), (xiii), (xiv), (xv),
1-1, 1-2, 1-3, 1-5, 1-6, 1-7, 1-8, 3-12, 4-1, 4-5, 4-6, 5-2, 5-15, 5-16, 5-62,
6-4, 9-9 and 9-10 17 July 2006 23 November 2006
Amendment 9
(approved by the Council on 15 June 2006)
Replacement pages (xv) and 3-11 — —
17/7/06
Transmittal note
Amendments 8 and 9
to the
International Standards and
Recommended Practices
AERODROMES
(Annex 14, Volume I, to the Convention on International Civil Aviation)
1. Insert the following replacement pages in Annex 14, Volume I (Fourth Edition) to incorporate Amendment 8
which becomes applicable on 23 November 2006:
a) Pages (iii) to (v) — Table of Contents
b) Page (vi) — Abbreviations and symbols
c) Page (vii) — Publications
d) Pages (ix) to (xiv) — Foreword
e) Pages 1-1, 1-2, 1-3, 1-5, 1-6, 1-7 and 1-8 — Chapter 1
f) Page 3-12 — Chapter 3
g) Pages 4-1, 4-5 and 4-6 — Chapter 4
h) Pages 5-2, 5-15, 5-16, 5-62 — Chapter 5
i) Page 6-4 — Chapter 6
j) Pages 9-9 and 9-10 — Chapter 9
2. Insert the following replacement pages in Annex 14, Volume I (Fourth Edition) to incorporate Amendment 9
which was approved on 15 June 2006:
a) Page (xv) — Foreword
b) Page 3-11 — Chapter 3
3. Record the entry of these amendments on page (ii).
___________________
ANNEX 14 — VOLUME I (iii) 25/11/04
　
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