Abbreviations

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0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ

See also:

A

AML - Approved Model List

ATC - Air Traffic Control

B

B/K - Bendix/King

C

CDI - Course Deviation Indicator

CFR - Code of Federal Regulations

COM - Communications Receiver

D

DB - Database

DME - Distance Measuring Equipment

E

ETSO - European Technical Standard Order

F

FAA - Federal Aviation Administration

FMM - Flightline Maintenance Manual

G

G/S - Glideslope

GPS - Global Positioning System

H

H - Height

HSI - Horizontal Situation Indicator

I

IB - Instruction Book

ILS - Instrument Landing System

IN - Input

INB - Installation Bulletin

J

K

L

LCD - Liquid-Crystal Display

LH - Left Hand

LOC - Localizer

LPV - Localizer Performance with Vertical Guidance

LRU - Line Replaceable Unit

M

MFD - Multi-Function Display

MFR - Manufacturer

N

NAV - Navigation

NVIS - Night Vision Imaging System

O

OEM - Original Equipment Manufacturer

OUT - Output

P

P/N - Part Number

PFD - Primary Flight Display

PL - Parts List

Q

R

R/OH - Repair/Overhaul

RCI - Rockwell Collins, Inc.

RF - Radio Frequency

RH - Right Hand

RMS - Root Mean Square

RTCA - Radio Technical Commission for Aeronautics

S

SD - Secure Digital

SEA - Southeast Aerospace

SIL - Service Information Letter or Service Letter (SL)

SINAD - Signal-to-noise and Distortion Ratio

SL - Service Letter or Service Information Letter (SIL)

SM - Service Memo

SNR - Signal-to-Noise Ratio

SUA - Special Use Airspace

SV/OH - Serviceable or overhauled condition of a part or a component, generally used

SVT - Syntetic Vision Technology

T

TAWS - Terrain Awareness and Warning System

TB - Test Bulletin

TEST - Testing, inspection, check and any type of maintenance that may include testing procedures

TFT - Thin-Film Transistor

TS - Technical Specification

TSO - Technical Standard Order

U

UNKN - Unknown

V

VDC - Volts Direct Current

VFR - Visual Flight Rules

VHF - Very High Frequency

VOR - VHF Omni-directional Radio Range

VRMS - Volts Root Mean Square

W

W - Width

WAAS - Wide Area Augmentation System

WXR - Weather Radar System

X

Y

Z