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In general, the ICAO DOC 8126 and the OPADD rules shall be followed. These have not been copied in this document in order to avoid duplication with those documents. Only instructions that are specific to the AIXM encoding of this event are stated here.
Item A
The item A shall contain the AHP.BL.locationIndicatorICAO if not NIL. Otherwise, the nationality letter(s) as defined in ICAO Doc 7910 followed by “XX” or “XXX”be generated according to the general production rules for item A using the Event.concernedAirportHeliport.
Q code
The following mapping shall be used:
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