Aviation Maintenance Terms beginning with S

s

second, the SI metric system base unit for time or time interval

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SA

Selective Availability

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SAE

Society of Automotive Engineers. A professional organization that has formulated standards for the automotive and aviation industries.

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SAE

Society of Automotive Engineers

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SAE

Society Of Automotive Engineers

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SAT

Static Air Temperature

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SATCOM

Satellite communications.

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SATCOM

Satellite Communication

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SBAS

Satellite-Based Augmentation System

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SBS

Surveillance and Broadcast Services

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SC

Special Committee

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SCR

Silicon-Controlled Rectifier

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SDA

System Design Assurance

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SDI

Source Destination Identifier

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SELCAL

Selective Calling System

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SER DL

Serial Data Link

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SG

Symbol Generator

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SHF

Super-high frequency.

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SIL

Source Integrity Level

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SILSUPP

SIL Supplement

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SIS

Signal-in-Space

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SITA

Société International De Telecommunications Aeronautiques

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SMAW

Shielded Metal Arc Welding

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SMD

Surface Mounted Device

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SNR

Signal-to-Noise Ratio

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SOAP

Spectrometric oil analysis program. An oil analysis program in which a sample of oil is burned in an electric arc and an analysis is made of the wavelength composition of the resulting light. Each chemical element in the oil, when burned, produces light containing a unique band of frequencies. A computer analyzes the amount of each band of frequencies and prints out the number of parts of the element per million parts of the entire sample. SOAP can predict engine problems by warning the engine operator of an uncharacteristic increase of any elements in the oil.

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SOL

Solenoid

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SOLV

Solenoid Valve

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SOM

Start Of Message

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SOT

Start Of Transmission

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SPKR

Speaker

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SPR

Software Problem Report

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SQL

Squelch

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SRM

Structural Repair Manual.

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SSB

Single Sideband

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SSID

Supplemental Structural Inspection Documents

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SSM

Sign Status Matrix

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SSR

Secondary Surveillance Radar

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ST

Synchro Transmitter

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STAT INV

Static Inverter

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STBY

Standby

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STC

Supplemental Type Certificate

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STC

Supplemental Type Certificate

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STOL

Short takeoff and landing.

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SURF

Basic Surface Situation Awareness

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SURF (Basic Surface)

An ADS-B application that displays traffic over an airport surface map underlay, and is used to support the flight crew in making decisions about taxiing, takeoff, and landing. The underlying map may depict runways only, or runways, taxiways, and other movement areas.

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SW

Switch

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SYM GEN

Symbol Generator

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