Order 7110.65P, Air Traffic Control, with changes

Pilot/Controller Glossary 8/5/04PROFILE DESCENT− An uninterrupted descent(except where level flight is required for speedadjustment; e.g., 250 knots at 10,000 feet MSL) fromcruising altitude/level to interception of a glideslopeor to a minimum altitude specified for the initial orintermediate approach segment of a nonprecisioninstrument approach. The profile descent normallyterminates at the approach gate or where theglideslope or other appropriate minimum altitude isintercepted.PROGRAMMABLE INDICATOR DATA PRO-CESSOR− The PIDP is a modification to theAN/TPX-42 interrogator system currently installedin fixed RAPCONs. The PIDP detects, tracks, andpredicts secondary radar aircraft targets. These aredisplayed by means of computer-generated symbolsand alphanumeric characters depicting flight identification,aircraft altitude, ground speed, and flight plandata. Although primary radar targets are not tracked,they are displayed coincident with the secondaryradar targets as well as with the other symbols andalphanumerics. The system has the capability ofinterfacing with ARTCCs.PROGRESS REPORT−(See POSITION REPORT.)PROGRESSIVE TAXI− Precise taxi instructionsgiven to a pilot unfamiliar with the airport or issuedin stages as the aircraft proceeds along the taxi route.PROHIBITED AREA−(See SPECIAL USE AIRSPACE.)(See ICAO term PROHIBITED AREA.)PROHIBITED AREA [ICAO]− An airspace ofdefined dimensions, above the land areas or territorialwaters of a State, within which the flight of aircraftis prohibited.PROPOSED BOUNDARY CROSSING TIME−Each center has a PBCT parameter for each internalairport. Proposed internal flight plans are transmittedto the adjacent center if the flight time along theproposed route from the departure airport to thecenter boundary is less than or equal to the value ofPBCT or if airport adaptation specifies transmissionregardless of PBCT.PROPOSED DEPARTURE TIME− The time that theaircraft expects to become airborne.PROTECTED AIRSPACE− The airspace on eitherside of an oceanic route/track that is equal to one-halfthe lateral separation minimum except where reductionof protected airspace has been authorized.PT−(See PROCEDURE TURN.)PTP−(See POINT−TO−POINT.)PTS−(See POLAR TRACK STRUCTURE.)PUBLISHED ROUTE− A route for which an IFRaltitude has been established and published; e.g.,Federal Airways, Jet Routes, Area NavigationRoutes, Specified Direct Routes.PCG P−4