CAP 413 Radiotelephony Manual
Appendix 1 Page 1
Appendix 1 UK Differences to ICAO Radiotelephony
Procedures
1 ICAO sets out standard international phraseology for communications between air
traffic services and pilots in several documents including Annex 10 Volume 2
(Communications Procedures) to the Convention on International Civil Aviation and
ICAO PANS-ATM (Procedures for Air Navigation Services – Air Traffic Management)
Doc. 4444.
2 Where the ICAO standard phraseology may be misunderstood, or has weaknesses in
the UK environment, different phraseology has been specified for use (and notified to
ICAO). In the UK, air traffic service units and pilots are expected to comply with the
phraseology and procedures described in main text of this document.
3 When communicating with air traffic service units in other States pilots should use
phraseology and procedures set out by ICAO (subject to any differences notified by
that State).
4 Significant differences between the ICAO standard phraseology and that specified for
use in CAP 413 are described in the table (below).
Source/Additional
Information
Details of ICAO/UK Difference Reason/Remarks
Annex 10
See UK AIP GEN 1.7
Phraseology FLIGHT LEVEL ONE ZERO
ZERO (ICAO) is not used in the UK. In
the UK flight levels ending in hundreds
are transmitted as HUNDRED e.g.
FLIGHT LEVEL ONE HUNDRED.
To avoid potential confusion with
adjacent flight levels and
misidentification of cleared levels
e.g. FLIGHT LEVEL ONE ZERO
ZERO with FLIGHT LEVEL ONE
ONE ZERO.
Annex 10
See UK AIP GEN 1.7
In the UK, the name of either the aircraft
manufacturer, or name of the aircraft
model, or name of the aircraft
category (e.g. helicopter or
gyrocopter) may be used as a prefix to
the callsign.
To aid recognition by the ground
station and/or other aircraft that the
aircraft transmitting is of a particular
category and may manoeuvre
differently or require special
handling.
Annex 10
See UK AIP GEN 1.7
In the UK CONTACT shall have the
meaning “Establish communications
with...(your details have been
passed)”.
This shortens a pilot’s first call on
the next ATS unit/frequency, as he/
she knows he/she does not have to
pass full details.
Annex 10
See UK AIP GEN 1.7
In the UK the additional term -
FREECALL shall have the meaning
“CALL (unit) (your details have not
been passed)”.
This informs the pilot he/she will
have to pass full details to the next
ATS unit/frequency on first contact.
Annex 10
See UK AIP GEN 1.7
PAN PAN MEDICAL is not used in the
UK but refers to a Geneva Convention
term associated with medical
transportation by parties involved in a
conflict.
Use of this term is not appropriate
in the UK.
31 March 2011
To Next Page
Loading...