Order 7110.65P, Air Traffic Control, with changes

2/19/04Pilot/Controller GlossaryLLAA−(See LOCAL AIRPORT ADVISORY.)LAAS−(See LOW ALTITUDE ALERT SYSTEM.)LAHSO− An acronym for “Land and Hold ShortOperation.” These operations include landing andholding short of an intersecting runway, a taxiway, apredetermined point, or an approach/departure flightpath.LAHSO-DRY− Land and hold short operations onrunways that are dry.LAHSO-WET− Land and hold short operations onrunways that are wet (but not contaminated).LAND AND HOLD SHORT OPERATIONS− Operationswhich include simultaneous takeoffs andlandings and/or simultaneous landings when a landingaircraft is able and is instructed by the controllerto hold-short of the intersecting runway/taxiway ordesignated hold-short point. Pilots are expected topromptly inform the controller if the hold shortclearance cannot be accepted.(See PARALLEL RUNWAYS.)(Refer to AIM.)LANDING AREA− Any locality either on land,water, or structures, including airports/heliports andintermediate landing fields, which is used, or intendedto be used, for the landing and takeoff ofaircraft whether or not facilities are provided for theshelter, servicing, or for receiving or dischargingpassengers or cargo.(See ICAO term LANDING AREA.)LANDING AREA [ICAO]− That part of a movementarea intended for the landing or take-off of aircraft.LANDING DIRECTION INDICATOR− A devicewhich visually indicates the direction in whichlandings and takeoffs should be made.(See TETRAHEDRON.)(Refer to AIM.)LANDING DISTANCE AVAILABLE [ICAO]− Thelength of runway which is declared available andsuitable for the ground run of an aeroplane landing.LANDING MINIMUMS− The minimum visibilityprescribed for landing a civil aircraft while using aninstrument approach procedure. The minimum applieswith other limitations set forth in 14 CFRPart 91 with respect to the Minimum DescentAltitude (MDA) or Decision Height (DH) prescribedin the instrument approach procedures as follows:a. Straight-in landing minimums. A statement ofMDA and visibility, or DH and visibility, required fora straight-in landing on a specified runway, orb. Circling minimums. A statement of MDA andvisibility required for the circle-to-land maneuver.Note: Descent below the established MDA or DH isnot authorized during an approach unless theaircraft is in a position from which a normalapproach to the runway of intended landing can bemade and adequate visual reference to requiredvisual cues is maintained.(See CIRCLE-TO-LAND MANEUVER.)(See DECISION HEIGHT.)(See INSTRUMENT APPROACHPROCEDURE.)(See MINIMUM DESCENT ALTITUDE.)(See STRAIGHT-IN LANDING.)(See VISIBILITY.)(Refer to 14 CFR Part 91.)LANDING ROLL− The distance from the point oftouchdown to the point where the aircraft can bebrought to a stop or exit the runway.LANDING SEQUENCE− The order in which aircraftare positioned for landing.(See APPROACH SEQUENCE.)LAST ASSIGNED ALTITUDE− The last altitude/flight level assigned by ATC and acknowledged bythe pilot.(See MAINTAIN.)(Refer to 14 CFR Part 91.)LATERAL NAVIGATION (LNAV)– A function ofarea navigation (RNAV) equipment which calculates,displays, and provides lateral guidance to a profile orpath.LATERAL SEPARATION− The lateral spacing ofaircraft at the same altitude by requiring operation ondifferent routes or in different geographical locations.(See SEPARATION.)PCG L−1