Order 7110.65P, Air Traffic Control, with changes

Pilot/Controller Glossary 2/17/05NDB−(See NONDIRECTIONAL BEACON.)NEGATIVE− “No,” or “permission not granted,” or“that is not correct.”NEGATIVE CONTACT− Used by pilots to informATC that:a. Previously issued traffic is not in sight. It maybe followed by the pilot’s request for the controller toprovide assistance in avoiding the traffic.b. They were unable to contact ATC on a particularfrequency.NFDC−(See NATIONAL FLIGHT DATA CENTER.)NFDD−(See NATIONAL FLIGHT DATA DIGEST.)NIGHT− The time between the end of evening civiltwilight and the beginning of morning civil twilight,as published in the American Air Almanac, convertedto local time.(See ICAO term NIGHT.)NIGHT [ICAO]− The hours between the end ofevening civil twilight and the beginning of morningcivil twilight or such other period between sunset andsunrise as may be specified by the appropriateauthority.Note: Civil twilight ends in the evening when thecenter of the sun’s disk is 6 degrees below thehorizon and begins in the morning when the centerof the sun’s disk is 6 degrees below the horizon.NO GYRO APPROACH− A radar approach/vectorprovided in case of a malfunctioning gyro-compassor directional gyro. Instead of providing the pilotwith headings to be flown, the controller observes theradar track and issues control instructions “turnright/left” or “stop turn” as appropriate.(Refer to AIM.)NO GYRO VECTOR−(See NO GYRO APPROACH.)NO TRANSGRESSION ZONE (NTZ)− The NTZ isa 2,000 foot wide zone, located equidistant betweenparallel runway final approach courses in whichflight is not allowed.NONAPPROACH CONTROL TOWER− Authorizesaircraft to land or takeoff at the airport controlledby the tower or to transit the Class D airspace. Theprimary function of a nonapproach control tower isthe sequencing of aircraft in the traffic pattern and onthe landing area. Nonapproach control towers alsoseparate aircraft operating under instrument flightrules clearances from approach controls and centers.They provide ground control services to aircraft,vehicles, personnel, and equipment on the airportmovement area.NONCOMMON ROUTE/PORTION− That segmentof a North American Route between the inlandnavigation facility and a designated North Americanterminal.NONCOMPOSITE SEPARATION− Separation inaccordance with minima other than the compositeseparation minimum specified for the area concerned.NONDIRECTIONAL BEACON− An L/MF or UHFradio beacon transmitting nondirectional signalswhereby the pilot of an aircraft equipped withdirection finding equipment can determine his/herbearing to or from the radio beacon and “home” on ortrack to or from the station. When the radio beacon isinstalled in conjunction with the Instrument LandingSystem marker, it is normally called a CompassLocator.(See AUTOMATIC DIRECTION FINDER.)(See COMPASS LOCATOR.)NONMOVEMENT AREAS− Taxiways and apron(ramp) areas not under the control of air traffic.NONPRECISION APPROACH−(See NONPRECISION APPROACHPROCEDURE.)NONPRECISION APPROACH PROCEDURE− Astandard instrument approach procedure in which noelectronic glideslope is provided; e.g., VOR, TA-CAN, NDB, LOC, ASR, LDA, or SDF approaches.NONRADAR− Precedes other terms and generallymeans without the use of radar, such as:a. Nonradar Approach. Used to describe instrumentapproaches for which course guidance on finalapproach is not provided by ground-based precisionor surveillance radar. Radar vectors to the finalPCG N−2