Order 7110.65P, Air Traffic Control, with changes

Pilot/Controller Glossary 8/5/04service in this airspace is delegated to variouscountries, based generally upon geographic proximityand the availability of the required resources.OCEANIC DISPLAY AND PLANNING SYS-TEM− An automated digital display system whichprovides flight data processing, conflict probe, andsituation display for oceanic air traffic control.OCEANIC NAVIGATIONAL ERROR REPORT− Areport filed when an aircraft exiting oceanic airspacehas been observed by radar to be off course. ONERreporting parameters and procedures are contained inFAAO 7110.82, Monitoring of Navigational PerformanceIn Oceanic Areas.OCEANIC PUBLISHED ROUTE− A route establishedin international airspace and charted ordescribed in flight information publications, such asRoute Charts, DOD Enroute Charts, Chart Supplements,NOTAMs, and Track Messages.OCEANIC TRANSITION ROUTE− An ATS routeestablished for the purpose of transitioning aircraftto/from an organized track system.ODAPS−(See OCEANIC DISPLAY AND PLANNINGSYSTEM.)ODP−(See OBSTACLE DEPARTURE PROCEDURE.)OFF COURSE− A term used to describe a situationwhere an aircraft has reported a position fix or isobserved on radar at a point not on the ATC-approvedroute of flight.OFF-ROUTE VECTOR− A vector by ATC whichtakes an aircraft off a previously assigned route.Altitudes assigned by ATC during such vectorsprovide required obstacle clearance.OFFSET PARALLEL RUNWAYS− Staggered runwayshaving centerlines which are parallel.OFFSHORE/CONTROL AIRSPACE AREA− Thatportion of airspace between the U.S. 12 NM limit andthe oceanic CTA/FIR boundary within which airtraffic control is exercised. These areas are establishedto provide air traffic control services. Offshore/Control Airspace Areas may be classified as eitherClass A airspace or Class E airspace.OFT−(See OUTER FIX TIME.)OM−(See OUTER MARKER.)OMEGA− An RNAV system designed for long-rangenavigation based upon ground-based electronic navigationalaid signals.ON COURSE−a. Used to indicate that an aircraft is established onthe route centerline.b. Used by ATC to advise a pilot making a radarapproach that his/her aircraft is lined up on the finalapproach course.(See ON-COURSE INDICATION.)ON-COURSE INDICATION− An indication on aninstrument, which provides the pilot a visual meansof determining that the aircraft is located on thecenterline of a given navigational track, or anindication on a radar scope that an aircraft is on agiven track.ONE-MINUTE WEATHER− The most recent oneminute updated weather broadcast received by a pilotfrom an uncontrolled airport ASOS/AWOS.ONER−(See OCEANIC NAVIGATIONAL ERRORREPORT.)OPERATIONAL−(See DUE REGARD.)OPPOSITE DIRECTION AIRCRAFT− Aircraft areoperating in opposite directions when:a. They are following the same track in reciprocaldirections; orb. Their tracks are parallel and the aircraft areflying in reciprocal directions; orc. Their tracks intersect at an angle of more than135.OPTION APPROACH− An approach requested andconducted by a pilot which will result in either atouch-and-go, missed approach, low approach, stopand-go,or full stop landing.(See CLEARED FOR THE OPTION.)(Refer to AIM.)ORGANIZED TRACK SYSTEM− A series of ATSroutes which are fixed and charted; i.e., CEP,NOPAC, or flexible and described by NOTAM; i.e.,NAT TRACK MESSAGE.OROCA− An off-route altitude which providesobstruction clearance with a 1,000 foot buffer inPCG O−2