Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 1667

c) messages exchanged between civil aviation authorities relating to aeronautical services. 4.4.1.1.8 Messages requesting information shall take the same priority indicator as the category of message being requested except where a higher priority is warranted for flight safety. 4.4.1.1.9 Service messages (priority indicator as appropriate). This category shall comprise messages originated by aeronautical fixed stations to obtain information or verification concerning other messages which appear to have been transmitted incorrectly by the aeronautical fixed service, confirming channel-sequence numbers, etc. 22/11/07 No. 82 Annex 10 — Aeronautical Telecommunications Volume II 1/11/01 4-4 4.4.1.1.9.1 Service messages shall be prepared in the format prescribed in 4.4.2 or 4.4.15. In applying the provisions of 4.4.3.1.2 or 4.4.15.2.1.3 to service messages addressed to an aeronautical fixed station identified only by a location indicator, this indicator shall be immediately followed by the ICAO three-letter designator YFY, followed by an appropriate 8th letter. 4.4.1.1.9.2 Service messages shall be assigned the appropriate priority indicator. 4.4.1.1.9.2.1 Recommendation.— When service messages refer to messages previously transmitted, the priority indicator assigned should be that used for the message(s) to which they refer. 4.4.1.1.9.3 Service messages correcting errors in transmission shall be addressed to all the addressees that will have received the incorrect transmission. 4.4.1.1.9.4 A reply to a service message shall be addressed to the station which originated the initial service message. 4.4.1.1.9.5 Recommendation.— The text of all service messages should be as concise as possible. 4.4.1.1.9.6 A service message, other than one acknowledging receipt of SS messages, shall be further identified by the use of the abbreviation SVC as the first item in the text. 4.4.1.1.9.7 When a service message refers to a message previously handled, reference to the previous message shall be made by use of the appropriate transmission identification (see 4.4.2.1.1 b) and 4.4.15.1.1 b)) or the filing time and originator indicator groups (see 4.4.4 and 4.4.15.2.2) identifying the reference message. 4.4.1.2 Order of priority 4.4.1.2.1 The order of priority for the transmission of messages in the aeronautical fixed telecommunication network shall be as follows: Transmission Priority priority indicator SS DD FF GG KK 4.4.1.2.2 Recommendation.— Messages having the same priority indicator should be transmitted in the order in which they are received for transmission. 4.4.1.3 Routing of messages 4.4.1.3.1 All communications shall be routed by the most expeditious route available to effect delivery to the addressee. 4.4.1.3.2 Predetermined diversion routing arrangements shall be made, when necessary, to expedite the movement of communication traffic. Each communication centre shall have the appropriate diversion routing lists, agreed to by the Administration(s) operating the communication centres affected and shall use them when necessary. 4.4.1.3.2.1 Recommendation.— Diversion routing should be initiated: 1) in a fully automatic communication centre:

Source: https://magyarkozlony.hu/hivatalos-lapok/1f7c6b0e16b4b71a92e5ad24416008bbe2e26aab/dokumentumok/710811d1f7f958a2990684d0cbf918e84f5497e5/letoltes