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d) individual ATIS messages shall be identified by a
designator in the form of a letter of the ICAO spelling
alphabet. Designators assigned to consecutive ATIS
messages shall be in alphabetical order;
e) aircraft shall acknowledge receipt of the information
upon establishing communication with the ATS unit
providing approach control service or the aerodrome
control tower, as appropriate;
f) the appropriate ATS unit shall, when replying to the
message in e) above or, in the case of arriving aircraft,
at such other time as may be prescribed by the
appropriate ATS authority, provide the aircraft with the
current altimeter setting; and
g) the meteorological information shall be extracted from
the local meteorological routine or special report.
Chapter 4 Annex 11 — Air Traffic Services
4-5 1/11/01
Note.— In accordance with Annex 3, Sections 4.5 and 4.7,
the surface wind direction and speed and runway visual range
(RVR) are to be averaged over 2 minutes and 1 minute,
respectively; and the wind information is to refer to conditions
along the runway for departing aircraft and to conditions at
the touchdown zone for arriving aircraft. A template for the
local meteorological report, including the corresponding
ranges and resolutions of each element, are in Appendix 2 to
Annex 3. Additional criteria for the local meteorological
report are contained in Chapter 4 of, and in Attachment C to,
Annex 3.
4.3.6.2 When rapidly changing meteorological conditions
make it inadvisable to include a weather report in the ATIS,
the ATIS messages shall indicate that the relevant weather
information will be given on initial contact with the
appropriate ATS unit.
4.3.6.3 Information contained in a current ATIS, the
receipt of which has been acknowledged by the aircraft
concerned, need not be included in a directed transmission to
the aircraft, with the exception of the altimeter setting, which
shall be provided in accordance with 4.3.6.1 f).
4.3.6.4 If an aircraft acknowledges receipt of an ATIS
that is no longer current, any element of information that needs
updating shall be transmitted to the aircraft without delay.
4.3.6.5 Recommendation.— Contents of ATIS should be
kept as brief as possible. Information additional to that
specified in 4.3.7 to 4.3.9, for example information already
available in aeronautical information publications (AIPs) and
NOTAM, should only be included when justified in exceptional
circumstances.
4.3.7 ATIS for arriving and
departing aircraft
ATIS messages containing both arrival and departure information
shall contain the following elements of information in
the order listed:
a) name of aerodrome;
b) arrival and/or departure indicator;
c) contract type, if communication is via D-ATIS;
d) designator;
e) time of observation, if appropriate;
f) type of approach(es) to be expected;
g) the runway(s) in use; status of arresting system
constituting a potential hazard, if any;
h) significant runway surface conditions and, if appropriate,
braking action;
i) holding delay, if appropriate;
j) transition level, if applicable;
k) other essential operational information;
l) surface wind direction and speed, including significant
variations and, if surface wind sensors related specifically
to the sections of runway(s) in use are available
and the information is required by operators, the
indication of the runway and the section of the runway
to which the information refers;
*m) visibility and, when applicable, RVR;
*n) present weather;
*o) cloud below 1 500 m (5 000 ft) or below the highest
minimum sector altitude, whichever is greater; cumulonimbus;
if the sky is obscured, vertical visibility
when available;
p) air temperature;
†q) dew point temperature;
r) altimeter setting(s);
s) any available information on significant meteorological
phenomena in the approach and climb-out areas including
wind shear, and information on recent weather of
operational significance;
t) trend forecast, when available; and
u) specific ATIS instructions.
4.3.8 ATIS for arriving aircraft
ATIS messages containing arrival information only shall
contain the following elements of information in the order
listed:
a) name of aerodrome;
b) arrival indicator;
c) contract type, if communication is via D-ATIS;
d) designator;
* These elements are replaced by the term “CAVOK”, whenever the
conditions as specified in the PANS-ATM (Doc 4444), Chapter 11
prevail.
† As determined on the basis of regional air navigation agreements.
　
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