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ICAO Abbreviations and Codes

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1-22 <strong>ICAO</strong> <strong>Abbreviations</strong> <strong>and</strong> <strong>Codes</strong> (PANS-ABC)<br />

Contact<br />

Continue(s) or continued<br />

Continuous<br />

Continuous day <strong>and</strong> night service<br />

Continuous wave<br />

Control<br />

Control area<br />

Control indicated is operational control<br />

Controller-pilot data link<br />

communications<br />

Control zone<br />

Coordinate or coordination<br />

Coordinated Universal Time<br />

Coordinated Universal Time<br />

(in meteorological messages)<br />

Coordinates<br />

Coordination (message type designator)<br />

Correct or correction or corrected (used<br />

to indicate corrected meteorological<br />

message; message type designator)<br />

Corrected meteorological message<br />

(message type designator)<br />

Course from a fix to an altitude<br />

Course from a fix to manual termination<br />

(used in navigation database coding)<br />

Course to a fix<br />

Course to an altitude<br />

Cover or covered or covering<br />

Cross<br />

Crossbar (of approach lighting system)<br />

Crossing<br />

Cruise<br />

Cumuliform<br />

Cumulonimbus (to be pronounced<br />

“CEE BEE”)<br />

Cumulus<br />

Current flight plan (message type<br />

designator)<br />

Customs<br />

Cyclic redundancy check<br />

CTC<br />

CONT<br />

CONS<br />

H24<br />

CW<br />

CTL<br />

CTA<br />

OPC<br />

CPDLC‡<br />

CTR<br />

COOR<br />

UTC‡<br />

Z<br />

COORD<br />

CDN<br />

COR<br />

CCA (or CCB,<br />

CCC . . . etc., in<br />

sequence)<br />

FA<br />

FM<br />

CF<br />

CA<br />

COV<br />

X<br />

XBAR<br />

XNG<br />

CRZ<br />

CUF<br />

CB‡<br />

CU<br />

CPL<br />

CUST<br />

CRC<br />

D<br />

Daily<br />

DLY<br />

Danger or dangerous<br />

DNG<br />

Danger area (followed by identification) D . . .<br />

Data link automatic terminal information<br />

service (to be pronounced “DEE-<br />

ATIS”)<br />

D-ATIS†<br />

Data link initiation capability<br />

DLIC<br />

Data link VOLMET<br />

D-VOLMET<br />

Date-time group<br />

DTG<br />

Datum crossing point<br />

DCP<br />

Dead reckoning<br />

DR<br />

December<br />

DEC<br />

Decision altitude<br />

DA<br />

Decision height<br />

DH<br />

Degrees<br />

DEG<br />

Degrees Celsius (Centigrade)<br />

C<br />

Delay (message type designator) DLA<br />

Delay or delayed<br />

DLA<br />

Delayed (used to indicate delayed<br />

meteorological message; message<br />

type designator)<br />

RTD<br />

Delayed meteorological message<br />

(message type designator)<br />

RRA (or RRB,<br />

RRC . . . etc., in<br />

sequence)<br />

Dense upper cloud<br />

DUC<br />

Depart or departure<br />

DEP<br />

Departure (message type designator) DEP<br />

Departure end of the runway<br />

DER<br />

Deposition<br />

DEPO<br />

Depth<br />

DPT<br />

Descend to or descending to<br />

DES<br />

Descend to <strong>and</strong> maintain<br />

DTAM<br />

Destination<br />

DEST<br />

Deteriorate or deteriorating<br />

DTRT<br />

Deviation or deviating<br />

DEV<br />

Dew point temperature<br />

DP<br />

Diffuse<br />

DIF<br />

Digital flight data recorder<br />

DFDR<br />

Direct (in relation to flight plan<br />

clearances <strong>and</strong> type of approach) DCT<br />

Direct controller-pilot communications DCPC<br />

Direction finding<br />

DF<br />

Displaced runway threshold<br />

DTHR<br />

Distance<br />

DIST<br />

___________________<br />

† When radiotelephony is used, the abbreviations <strong>and</strong> terms are transmitted as spoken words.<br />

‡ When radiotelephony is used, the abbreviations <strong>and</strong> terms are transmitted using the individual letters in non-phonetic form.<br />

* Signal is also available for use in communicating with stations of the maritime mobile service.<br />

# Signal for use in the teletypewriter service only.<br />

18/11/10

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