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Pilot/Controller Glossary 

11/3/22 

constant altitude and should not be confused with a 
cruise clearance. 

(See ALTITUDE.) 
(See ICAO term CRUISING LEVEL.) 

CRUISING LEVEL

 

(See CRUISING ALTITUDE.) 

CRUISING LEVEL [ICAO]

 A level maintained 

during a significant portion of a flight. 

CSP

 

(See CONSTRAINT SATISFACTION POINT) 

CT MESSAGE

 An EDCT time generated by the 

ATCSCC to regulate traffic at arrival airports. 
Normally, a CT message is automatically transferred 
from the traffic management system computer to the 
NAS en route computer and appears as an EDCT. In 
the event of a communication failure between the 
traffic management system computer and the NAS, 
the CT message can be manually entered by the TMC 
at the en route facility. 

CTA

 

(See CONTROLLED TIME OF ARRIVAL.) 
(See ICAO term CONTROL AREA.) 

CTAF

 

(See COMMON TRAFFIC ADVISORY 

FREQUENCY.) 

CTOP

 

(See COLLABORATIVE TRAJECTORY 

OPTIONS PROGRAM) 

CTRD

 

(See CERTIFIED TOWER RADAR DISPLAY.) 

CURRENT FLIGHT PLAN [ICAO]

 The flight 

plan, including changes, if any, brought about by 
subsequent clearances. 

CURRENT PLAN

 The ATC clearance the aircraft 

has received and is expected to fly. 

CVFP APPROACH

 

(See CHARTED VISUAL FLIGHT PROCEDURE 

APPROACH.) 

CWA

 

(See CENTER WEATHER ADVISORY and 

WEATHER ADVISORY.) 

CWT

 

(See 

CONSOLIDATED WAKE 

TURBULENCE.

PCG C

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