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6/17/21 

Pilot/Controller Glossary 

catching devices and energy absorption devices for 
the purpose of arresting both tailhook and/or 
nontailhook-equipped aircraft. It is used to prevent 
aircraft from overrunning runways when the aircraft 
cannot be stopped after landing or during aborted 
takeoff. Arresting systems have various names; e.g., 
arresting gear, hook device, wire barrier cable. 

(See ABORT.) 
(Refer to AIM.) 

ARRIVAL AIRCRAFT INTERVAL

 An internally 

generated program in hundredths of minutes based 
upon the AAR. AAI is the desired optimum interval 
between successive arrival aircraft over the vertex. 

ARRIVAL CENTER

 The ARTCC having jurisdic-

tion for the impacted airport. 

ARRIVAL DELAY

 A parameter which specifies a 

period of time in which no aircraft will be metered for 
arrival at the specified airport. 

ARRIVAL SECTOR

 An operational control sector 

containing one or more meter fixes. 

ARRIVAL SECTOR ADVISORY LIST

 An 

ordered list of data on arrivals displayed at the 
PVD/MDM of the sector which controls the meter 
fix. 

ARRIVAL SEQUENCING PROGRAM

 The auto-

mated program designed to assist in sequencing 
aircraft destined for the same airport. 

ARRIVAL TIME

 The time an aircraft touches down 

on arrival. 

ARSR

 

(See AIR ROUTE SURVEILLANCE RADAR.) 

ARTCC

 

(See AIR ROUTE TRAFFIC CONTROL 

CENTER.) 

ASDA

 

(See ACCELERATE-STOP DISTANCE 

AVAILABLE.) 

ASDA [ICAO]

 

(See ICAO Term ACCELERATE-STOP 

DISTANCE AVAILABLE.) 

ASDE

 

(See AIRPORT SURFACE DETECTION 

EQUIPMENT.) 

ASF

 

(See AIRPORT STREAM FILTER.) 

ASLAR

 

(See AIRCRAFT SURGE LAUNCH AND 

RECOVERY.) 

ASP

 

(See ARRIVAL SEQUENCING PROGRAM.) 

ASR

 

(See AIRPORT SURVEILLANCE RADAR.) 

ASR APPROACH

 

(See SURVEILLANCE APPROACH.) 

ASSOCIATED

 A radar target displaying a data 

block with flight identification and altitude 
information. 

(See UNASSOCIATED.) 

ATC

 

(See AIR TRAFFIC CONTROL.) 

ATC ADVISES

  Used to prefix a message of 

noncontrol information when it is relayed to an 
aircraft by other than an air traffic controller. 

(See ADVISORY.) 

ATC ASSIGNED AIRSPACE

 Airspace of defined 

vertical/lateral limits, assigned by ATC, for the 
purpose of providing air traffic segregation between 
the specified activities being conducted within the 
assigned airspace and other IFR air traffic. 

(See SPECIAL USE AIRSPACE.) 

ATC CLEARANCE

 

(See AIR TRAFFIC CLEARANCE.) 

ATC CLEARS

 Used to prefix an ATC clearance 

when it is relayed to an aircraft by other than an air 
traffic controller. 

ATC INSTRUCTIONS

 Directives issued by air 

traffic control for the purpose of requiring a pilot to 
take specific actions; e.g., “Turn left heading two five 
zero,” “Go around,” “Clear the runway.” 

(Refer to 14 CFR Part 91.) 

ATC PREFERRED ROUTE NOTIFICATION

 

EDST notification to the appropriate controller of the 
need to determine if an ATC preferred route needs to 
be applied, based on destination airport. 

(See ROUTE ACTION NOTIFICATION.) 
(See EN ROUTE DECISION SUPPORT TOOL.) 

ATC PREFERRED ROUTES

 Preferred routes that 

are not automatically applied by Host. 

PCG A

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