NTAMOD No Traffic Accepted Modification Message
NTE Not to exceed
NTM F/T SIM Nattenheim Fast Time Simulation
NTN Network Terminal Number (CCITT X.121 Structure)
NTR New Task Request
NTR/ADD New Task Request/ADD
NTR/SRD New Task Request/SRD
NTR/TL.ADD New Task Request/Top Level ADD and ICD
NTRY Entry *
NTSB National Transportation Safety Board (US)
NTT NERC Transition Team
NUA Network User Address
NUDET Nuclear Detection
NUP North European ADS-B Network (NEAN) Update Programme
Page 104
N
NUP NEAN (North European ADS-B Network) Upgrade Programme
NW North / West
NXRPT Next Reporting Point
NXT Next
O
O Oceanic
OAC Oceanic Area Control Centre
OACA Office of Airports and Civil Aviation / Office des Aéroports et de l’Aviation Civile
OACC Oceanic Area Control Centre
OACI Organisation de l'Aviation Civile Internationale / International Civil Aviation
Organisation (= ICAO)
OACI Organisation de l'Aviation Civile Internationale (ICAO)
OAG Official Airlines Guide (CFMU)
OAS Oceanic Automation System (ICAO - ADS)
OASIS Operational Application of Special Intelligence Systems
OASIS Open ATC System Integration Strategy (OCD)
OASIS Open Architecture for Simulation Systems
OASIS Oceanic Area System Improvement Study
OASYS Obstacle Avoidance System
OAT Operational Air Traffic *
OBA Off-Bore Sight Angle *
Obj. Objective in CIP
OBR Obnova Radiolomunikaci (YU) / Renewal of Air-Ground Communications
OBS OBservation Status
OBS Organisational Breakdown Structure *
OBT Off Block Time
OC Object Correlator *
OCA Oceanic Control Area
OCA/H Obstacle Clearance Altitude/Height
OCAP Out of Control Action Plan
OCD Operational Concept Document
OCDE Organisation de Coopération et de Développement économiques (FR)
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