Aviation and air traffic control terminology · MLC-0104

Aviation and air traffic control terms: P (55)

P time, see Proposed departure time
P-ACP, see Prearranged coordination procedures
PAN-PANThe international radio-telephony urgency signal. When repeated three times, indicates uncertainty or alert...
PAO, see Public aircraft operation (PAO)
PAR, see Precision approach radar
PAR [ICAO], see Precision approach radar [ICAO]
Parallel ILS approachesApproaches to parallel runways by IFR aircraft which, when established inbound toward the airport on the...
Parallel offset routeA parallel track to the left or right of the designated or established airway/route. Normally associated with...
Parallel runwaysTwo or more runways at the same airport whose centerlines are parallel. In addition to runway number...
PBCT, see Proposed boundary crossing time
PBN, see Performance-based navigation (PBN) [ICAO]
PDC, see Pre-departure clearance
PDRR, see Pre-departure reroute (PDRR)
Performance-based navigation (PBN) [ICAO]Area navigation based on performance requirements for aircraft operating along an ATS route, on an instrument...
Permanent echoRadar signals reflected from fixed objects on the earth's surface; e.g., buildings, towers, terrain...
PERTI, see Plan, execute, review, train, improve (PERTI)
PGUI, see Planview graphical user interface (PGUI)
Photo reconnaissanceMilitary activity that requires locating individual photo targets and navigating to the targets at a...
Pilot briefingThe gathering, translation, interpretation, and summarization of weather and aeronautical information into a...
Pilot in commandThe pilot responsible for the operation and safety of an aircraft during flight time.
Pilot initiated downlink (PID)Any message exchange that originates from the flight deck.
Pilot weather reportA report of meteorological phenomena encountered by aircraft in flight.
Pilot's discretionWhen used in conjunction with altitude assignments, means that ATC has offered the pilot the option of...
PIREP, see Pilot weather report
Pitch pointA fix/waypoint that serves as a transition point from a departure procedure or the low altitude ground-based...
Plan, execute, review, train, improve (PERTI)A process that delivers a one-day detailed plan for NAS operations, and a two-day outlook, which sets NAS...
Plans displayA display available in EDST that provides detailed flight plan and predicted conflict information in textual...
Planview graphical user interface (PGUI)A TBFM display that provides a spatial display of individual aircraft track information.
POFZ, see Precision obstacle free zone (POFZ)
Point out, see Radar point out
Point-to-point (PTP)A level of NRR service for aircraft that is based on traditional waypoints in their FMSs or RNAV equipage.
Polar track structureA system of organized routes between Iceland and Alaska which overlie Canadian MNPS Airspace.
Position reportA report over a known location as transmitted by an aircraft to ATC.
Position symbolA computer-generated indication shown on a radar display to indicate the mode of tracking.
Positive controlThe separation of all air traffic within designated airspace by air traffic control.
Powered-liftA heavier-than-air aircraft capable of vertical takeoff, vertical landing, and low-speed flight that depends...
Practice instrument approachAn instrument approach procedure conducted by a VFR or an IFR aircraft for the purpose of pilot training or...
Prearranged coordinationA standardized procedure which permits an air traffic controller to enter the airspace assigned to another...
Prearranged coordination proceduresA facility's standardized procedure that describes the process by which one controller must allow an aircraft...
PrecipitationAny or all forms of water particles (rain, sleet, hail, or snow) that fall from the atmosphere and reach the...
Precision approach, see Precision approach procedure
Precision approach procedureA standard instrument approach procedure in which an electronic glideslope or other type of glidepath is...
Precision approach radarRadar equipment in some ATC facilities operated by the FAA and/or the military services at joint-use...
Precision approach radar [ICAO]Primary radar equipment used to determine the position of an aircraft during final approach, in terms of...
Precision obstacle free zone (POFZ)An 800 foot wide by 200 foot long area centered on the runway centerline adjacent to the threshold designed...
Precision runway monitor (PRM) systemProvides air traffic controllers monitoring the NTZ during simultaneous close parallel PRM approaches with...
Pre-departure clearanceAn application with the Terminal Data Link System (TDLS) that provides clearance information to subscribers...
Pre-departure reroute (PDRR)A capability within the Traffic Flow Management System that enables ATC to quickly amend and execute revised...
Predictive wind shear alert system (PWS)A self-contained system used on board some aircraft to alert the flight crew to the presence of a potential...
Preferred IFR routesRoutes established between busier airports to increase system efficiency and capacity. They normally extend...
Pre-flight pilot briefing, see Pilot briefing
Prevailing visibility, see Visibility
Primary radar targetAn analog or digital target, exclusive of a secondary radar target, presented on a radar display.
Prior permission required (PPR)Prior Permission Required (PPR) means prior permission required to have full operational use of a runway...
PRM, see Area navigation (RNAV); PRM approach; Precision runway monitor (PRM) system
PRM approachAn instrument approach procedure titled ILS PRM, RNAV PRM, LDA PRM, or GLS PRM conducted to parallel runways...
Procedural control [ICAO]Term used to indicate that information derived from an ATS surveillance system is not required for the...
Procedural separation [ICAO]The separation used when providing procedural control.
Procedure turnThe maneuver prescribed when it is necessary to reverse direction to establish an aircraft on the...
Procedure turn [ICAO]A maneuver in which a turn is made away from a designated track followed by a turn in the opposite direction...
Procedure turn inboundThat point of a procedure turn maneuver where course reversal has been completed and an aircraft is...
Profile descentAn uninterrupted descent (except where level flight is required for speed adjustment; e.g., 250 knots at...
Progress report, see Position report
Progressive taxiPrecise taxi instructions given to a pilot unfamiliar with the airport or issued in stages as the aircraft...
Prohibited area, see Special use airspace; Prohibited area [ICAO]
Prohibited area [ICAO]An airspace of defined dimensions, above the land areas or territorial waters of a State, within which the...
Prominent obstacleAn obstacle that meets one or more of the following conditions:
Propeller (prop) wash (prop blast)The disturbed mass of air generated by the motion of a propeller.
Proposed boundary crossing timeEach center has a PBCT parameter for each internal airport. Proposed internal flight plans are transmitted to...
Proposed departure timeThe time that the aircraft expects to become airborne.
Protected airspaceThe airspace on either side of an oceanic route/track that is equal to one-half the lateral separation...
Protected segmentThe protected segment is a segment on the amended TFM route that is to be inhibited from automatic adapted...
PT, see Procedure turn
PTP, see Point-to-point (PTP)
PTS, see Polar track structure
Public aircraft operation (PAO)A UAS operation meeting the qualifications and conditions required for the operation of a public aircraft.
Published instrument approach procedure visual segmentA segment on an IAP chart annotated as “Fly Visual to Airport” or “Fly Visual.” A dashed arrow will indicate...
Published routeA route for which an IFR altitude has been established and published; e.g., Federal Airways, Jet Routes, Area...
PWS, see Predictive wind shear alert system (PWS)

55 of 1,122 terms in Aviation and air traffic control terminology (MLC-0104). Request the full dataset.