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

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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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SDA

System Design Assurance

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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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SSR

Secondary Surveillance Radar

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STC

Supplemental Type Certificate

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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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