Pilot/Controller Glossary 

3/21/24 

CENTRAL EAST PACIFIC

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An organized route system between the U.S. West Coast and Hawaii. 

CEP

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(See CENTRAL EAST PACIFIC.) 

CERAP

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(See COMBINED CENTER-RAPCON.) 

CERTIFICATE OF WAIVER OR AUTHORIZATION (COA)

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 An FAA grant of approval for a specific flight 

operation or airspace authorization or waiver. 
CERTIFIED TOWER RADAR DISPLAY (CTRD)

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An FAA radar display certified for use in the NAS. 

CFR

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(See CALL FOR RELEASE.) 

CHA 

(See CONTINGENCY HAZARD AREA) 

CHAFF

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Thin, narrow metallic reflectors of various lengths and frequency responses, used to reflect radar 

energy. These reflectors, when dropped from aircraft and allowed to drift downward, result in large targets on 

the radar display. 
CHART SUPPLEMENT

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 A series of civil/military flight information publications issued by FAA every 56 days 

consisting of the Chart Supplement U.S., Chart Supplement Alaska, and Chart Supplement Pacific. 
CHART SUPPLEMENT ALASKA

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 A flight information publication designed for use with appropriate IFR 

or VFR charts which contains data on all airports, seaplane bases, and heliports open to the public including 

communications data, navigational facilities, airport diagrams, certain special notices, and non

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regulatory 

procedures. Also included in this publication are selected entries needed to support the unique geographical 

operational conditions of Alaska. This publication is issued in one volume for the state of Alaska. 
CHART SUPPLEMENT PACIFIC

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 A flight information publication designed for use with appropriate IFR or 

VFR charts which contains data on all airports, seaplane bases, and heliports open to the public including 

communications data, navigational facilities, airport diagrams, certain special notices, and non

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regulatory 

procedures. Also included in this publication are Instrument Approach Procedures (IAP), Departure Procedures 

(DP), and Standard Terminal Arrival (STAR) charts, along with selected entries needed to support the unique 

geographical operational conditions of the Pacific Oceanic region. This publication is issued in one volume for 

the Hawaiian Islands and other selected Pacific Islands. 
CHART SUPPLEMENT U.S.

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 A flight information publication designed for use with appropriate IFR or VFR 

charts which contains data on all airports, seaplane bases, and heliports open to the public including 

communications data, navigational facilities, airport diagrams, certain special notices, and non

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regulatory 

procedures. This publication is issued for the conterminous U.S., Puerto Rico, and the Virgin Islands in seven 

volumes according to geographical area. 
CHARTED VFR FLYWAYS

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Charted VFR Flyways are flight paths recommended for use to bypass areas 

heavily traversed by large turbine-powered aircraft. Pilot compliance with recommended flyways and associated 

altitudes is strictly voluntary. VFR Flyway Planning charts are published on the back of existing VFR Terminal 

Area charts. 
CHARTED VISUAL FLIGHT PROCEDURE APPROACH

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 An approach conducted while operating on an 

instrument flight rules (IFR) flight plan which authorizes the pilot of an aircraft to proceed visually and clear 

of clouds to the airport via visual landmarks and other information depicted on a charted visual flight procedure. 

This approach must be authorized and under the control of the appropriate air traffic control facility. Weather 

minimums required are depicted on the chart. 

CHASE

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An aircraft flown in proximity to another aircraft normally to observe its performance during training 

or testing. 

PCG C

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