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12 December 1966
12 April 1967
24 August 1967
54 World Updating of aeronautical meteorological figure codes, introduced by WMO,
Meteorological as of 1 January 1968.
Organization
13 June 1967
-
1 January 1968
55 France Permitting changes to be made to air-reports before their ground-to-ground
dissemination.
16 December 1968
16 April 1969
18 September 1969
15 May 1970
15 September 1970
4 February 1971
56 Sixth Air Navigation Introduction of: specifications for area forecast centres; simplified
(7th Edition) Conference specifications for meteorological offices to reflect increasing centralization;
extended coverage of aircraft reports to include adverse weather conditions
encountered during initial climb and final approach; routine reporting by
aircraft of "spot" rather than "mean" winds; improved criteria for in-flight
reports of the intensity of turbulence; new definition of "air traffic services
reporting office" and changes in the definition of "air traffic services unit";
changes to the aeronautical meteorological codes introduced by WMO, as of
18 September 1969.
Foreword Annex 3 - Meteorological Service for International Air Navigation
Adopted/approved
Effective
Applicable
57 Second Meeting of
the Technical Panel
on Supersonic
Transport
Operations
58 World
Meteorological
Organization
59 Sixth Air Navigation
Conference
60 Sixth Air Navigation
(8th Edition) Conference. Eighth
Air Navigation
Conference. Meteorology
Divisional
Meeting (1 974)
6 1 Ninth Air
Navigation
Conference. Meteorology
Divisional
Meeting (1 974)
62 Eighth Air
Navigation
Conference and
ICAO Council
63 MET Divisional
Meeting (1 974).
ICAO Secretariat.
Operational Flight
Information Service
Panel. Ninth Air
Navigation Conference.
Doc 9328
64 ICAO Secretariat
Amendment to the definition of "SIGMET information" to take account of
the requirements of SST aircraft operations; introduction of provisions for
making and recording special observations whenever moderate turbulence,
hail or cumulonimbus clouds are encountered during transonic or supersonic
flight.
Updating of aeronautical meteorological codes, introduced by WMO, as of
1 January 1972.
Permitting the omission of information on "next position and time over"
from Section 1 of air-reports exchanged between meteorological offices;
introduction of changes to the formats and data conventions in the model
form of air-report to make it suitable for direct input into computers.
Complete revision of Annex 3, incorporating the PANS-MET, the
specifications of which were regarded as being suitable for inclusion in
Annex 3 as Standards and Recommended Practices; the revision took into
account recently approved operational requirements and up-to-date methods
of meeting them; introduction of new Standards and Recommended
Practices, relating to service for operators and flight crew members,
meteorological information for air traffic services and for search and rescue
services, together with requirements for communications and their use; the
title of Annex 3 was, accordingly, amended to read Meteorological Service
for International Air Navigation.
New provisions and revision of existing provisions to improve the
coordination between meteorological offices/stations and air traffic services
units and the supply of meteorological information to the latter; new
specifications for observations and reports for take-off and landing;
introduction of a note refening to the specifications of Annex 14'for the
siting and construction of equipment and installations on operational areas to
reduce the hazard to aircraft to a minimum; replacement of the expression
"supersonic transport aircraft" by the expression "supersonic aircraft";
updating of Part 2, Appendix 2; revision of definition of "nephanalysis" and
deletion of "(29.92 in.)" from definition of "flight level"; deletion of
Attachment D - Aeronautical Meteorological Codes.
Inclusion in Appendix 1 of model charts and forms developed by WMO on
the basis of the operational requirements contained in Annex 3; transfer of
the data designators and geogr~phical designators from Appendix 2 to
Annex 3 to the Manual ofA eronautical Meteorolo-n ical Practice
(Doc 8896).
Definition for "meteorological bulletin"; correction to shortcomings in
ground-to-ground dissemination of air-reports; decrease in SIGMET
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