Aeronautical Acronyms beginning with N

NA

not authorized

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NACO

National Aeronautical Charting Office

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NAR

National Airspace Redesign

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NAS

National Airspace System

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NASA

National Aeronautics and Space Administration

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NASSI

National Airspace System status information

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NAT

North Atlantic

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NATCA

National Air Traffic Controllers Association

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NAT/OPS

North Atlantic Operation

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NAVAID

navigational aid

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NBCAP

National Beacon Code Allocation Plan

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ND

navigation displays

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NDB

nondirectional beacon

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NFDC

National Flight Data Center

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NFPO

National Flight Procedures Office

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NGA

National Geospatial Intelligence Agency

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NIMA

National Imagery and Mapping Agency

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NM

nautical mile

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NOAA

National Oceanic and Atmospheric Administration

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NOPAC

North Pacific

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NOTAM

Notice to Airmen

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NOTAM D

Distant NOTAM

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NOTAM L

Local NOTAM

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NOZ

normal operating zone

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NPA

nonprecision approach

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NPRM

Notice of Proposed Rulemaking

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NRP

national route program

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NRR

non-restrictive routing

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NRS

National Reference System

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NSE

navigation system error

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NTAP

Notice to Airmen Publication

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NTSB

National Transportation Safety Board

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NTZ

no transgression zone

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NWS

National Weather Service

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