# Commission Implementing Regulation (EU) No 923/2012 of 26 September 2012 laying down the common rules of the air and operational provisions regarding services and procedures in air navigation and amending Implementing Regulation (EU) No 1035/2011 and Regulations (EC) No 1265/2007, (EC) No 1794/2006, (EC) No 730/2006, (EC) No 1033/2006 and (EU) No 255/2010 (Text with EEA relevance), Division SERA.14005: Categories of messages

Extent: E+W+S+N.I.

(a) The categories of messages handled by the aeronautical mobile service, and the order of priority in the establishment of communications and the transmission of messages shall be in accordance with Table S14-1.
Table S14-1
Message category and radiotelephony order of priority signal
Radiotelephony signal
(a)
Distress calls, distress messages and distress traffic
MAYDAY
(b)
Urgency messages, including messages preceded by the medical transports signal
PAN PAN or PAN PAN MEDICAL
(c)
Communications relating to direction finding
—
(d)
Flight safety messages
—
(e)
Meteorological messages
—
(f)
Flight regularity messages
—
(b) Distress messages and distress traffic shall be handled in accordance with the provisions of point SERA.14095.
(c) Urgency messages and urgency traffic, including messages preceded by the medical transports signal, shall be handled in accordance with the provisions of point SERA.14095.

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Source: https://www.legislation.gov.uk/eur/2012/923/annex/section/14/division/SERA.14005 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-923/annex/section-14/division-SERA.14005
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.