7030_cons_en - Regional Supplementary Procedures.pdf

Chapter 12.METEOROLOGY12.1 AIRCRAFT OBSERVATIONS AND REPORTS12.1.1 When voice communications are used, oceanic area control centres shall designate, from among theaircraft intending to operate on the organized tracks, those which shall be required to report routine meteorologicalobservations at each prescribed reporting point. This designation shall be made by the oceanic area control centredelivering the oceanic clearance, using the phrase “SEND MET REPORTS”, and should normally be made so as todesignate one aircraft per track at approximately hourly intervals.Note.— When air-ground data link is being used for meteorological reporting during flight, no aircraftobservations by voice communications are required, in accordance with Annex 3, 5.3.1.12.1.2 When voice communications are used, all aircraft flying in the Bodø Oceanic, Søndrestrøm, Reykjavik,Gander Oceanic, Shanwick Oceanic, New York Oceanic and Santa Maria Oceanic flight information regions betweenNorth America and Europe in either direction shall be required to make and report routine meteorological observations ateach designated reporting point and at the intermediate mid-point between such reporting points, except that:a) the mid-point observation shall not be the subject of a separate report but will be retained fortransmission at the next designated reporting point; andb) aircraft cleared on an organized track shall be required to make and report routine observations onlywhen so designated at the time of receiving their oceanic clearance in accordance with 12.1.1 and6.1.1.12.1.3 When voice communications are used, the format to be used for all aircraft reports shall be in accordancewith Appendix 1 to the PANS-ATM._____________________NAT 12-1 30/11/07