S

S
S	Minimum Slat Retract Speed (EFIS)
s	Second
S	South
S/C	Step Climb
S/D	Step Descent
S/H	Sample and Hold
S/MECH	Shortening Mechanism
S/N OFF	Serial Number of the removed item
S/N ON	Serial Number of the New Item (at removal)
S/N	Serial Number
S/W	Software
SA	Single Aisle
SA	Stress Analysis
SACL	Stand Alone Content Loader
SACU	Semi-Automatic Control Unit
SACU	Stand Alone Compensator Unit
SAD	Spares Advance Data
SAD	Stress Analysis Data
SADF	Spares Advance Data Form
SAE	Society of Automotive Engineers
SAF	Safety
SAFD	Safetied
SAGB	Step Aside GearBox
SAL	System Address Label
SALS	Short Approach Light System
SALSA	Spot Array Light Supply Adapter
SAM	Stress Analysis Manual
SAOHE	Surface Air/Oil Heat Exchanger
SAR	Smart Access Recorder
SAR	Smart ACMS Recorder
SARI	SARI
SAS	Secondary Air System
SAT	Static Air Temperature
SATCOM	Satellite Communication
SAV	Starter Air Valve
SB	Service Bulletin
SBB	Swift Broadband
SBDB	Service Bulletin Data Base
SBEW	Standard Basic Empty Weight
SBI	Service Bulletin Index
SBIT	Service Bulletin Information Telex
SBIT	Service Bulletin Information Trasmission
SBL	Symbol
SBS	Service Bulletin Effectivity Schedule
SC	Scale
SC	Single Chime
SC	Source Code
SCAV	Scavenge
SCE	Source
SCFM	Standard Cubic Feet Minute of Gaseous Airflow
SCG	System Configuration Guide
SCH	Schematic
SCI	Secure Communication Interface
SCM	SDU Configuration Module
SCN	Specification Change Notice
SCO	Section Control
SCO	Section Controller
SCR	Screw
SCR	Specification Change Request
SCR	Supplier Control Review
SCS	Single Channel Simplex
SCS	Supplemental Cooling System
SCU	Supplemental Control Unit
SCU	System Control Unit
SCUP	Scupper
SD	System Display
SDAC	System Data Acquisition Concentrator
SDAC	System Data Analog Converter
SDAU	Special Data Acquisition Unit
SDB	Signals Data Base
SDCU	Smoke Detection Control Unit
SDF	Smoke Detection Function
SDI	Source Data Identifier
SDI	Source/Destination Identifier
SDL	Simple Data Loader
SDM	Safety Data Management
SDM	Smart Diode Module
SDN	System Description Note
SDOF	Single Degree of Freedom
SDS	Smoke Detection System
SDT	Smart Dataloading Tool
SDTM	Structure Description Training Manual
SDU	Satellite Data Unit
SDW	Specific Design Work
SE	Section
SE	Simplified English
SEAL	Sealing
SEB	Seat Electronic Box
SEB	Service Evaluation Bulletin
SEC	Secondary
SEC	SECondary Computer
SEC	Spoiler Elevator Computer
SECT	Section
SEG	Segment
SEL	Select, Selected, Selection, Selector
SELCAL	Selective Calling System
SELV	Selector Valve
SEMR	System Equipment Maintenance Requirements
SENS	Sensitivity
SEP	Separator
SEPDC	Secondary Electrical Power Distribution Center
SEPDS	Secondary Electrical Power Distribution System
SEQ	Sequence, Sequential
SER	Serial
SER	Serial Number
SER/PRL	Serial to Parallel
SERNO	Serial Number
SES	Support Equipment Summary
SET	Setting
SF	Spot Face
SFAR	Special Federal Aviation Regulation
SFC	Specific Fuel Consumption
SFCC	Sideways Facing Crew Cockpit
SFCC	Sideways Facing Crew Configuration
SFCC	Slat Flap Control Computer
SFE	Seller Furnished Equipment
SFPI	Slats/Flaps Position Indicator
SFPM	Surface Feet per Minute
SG	Starter Generator
SG	Stroke Generator
SGCU	Smart Galley Control Unit
SGCU	Starter Generator Control Unit
SGML	Standard Generalized Markup Language
SGP	Stroke Generator Processor
SGSC	Sheddable Ground Servicing Contactor
SGU	Symbol Generator Unit
SH ABS	Shock Absorber
SH ABS	Shock Absorber
SH	Sheet
SHADE	Schedules Airbus Data Exchange
SHCM	System Heating Control Module
SHDBL	Sheddable
SHED	Sheddable, Shedding
SHKR	Shaker
SHLD	Shield, Shielding
SHN	Scratch Hardness Number
SHPNG	Shipping
SHR PN	Shear Pin
SHR PN	Shear Pin
SHRD	Shroud
SHT	Short
SI	Slip Indicator
SI	Systeme International
SIAP	Structural Inspection Adjustment Program
SIC	System Isolation Contactor
SICU	System Interface Control Unit
SID	Standard Instrument Departure
SID	System Identification Data
SID	System Interface Definition
SIF	Selective Identification Feature
SIF	Spares Information File
SIG	Signal
SIL	Service Information Letter
SIL	Speech Interference Level
SIM	Simulation
SIM	Subscriber Identity Module
SIN	Sine
SIR	Service Identification Request
SIRU	Secure Interface Router Unit
SIS	Spares Investment Study
SIS	Standalone Identification System
SISD	System Installation Specification Dossier
SITR	System Installation Technical Reference
SIU	Server Interface Unit
SIV	Standard Item Variations
SKT	Socket
SL ALI	Safe Life Airworthiness Limitation Items
SL	Sea Level
SL	Service Letter
SLA	Small Light Adapter
SLA	Spot Light Adapter
SLC	Starter Line Contactor
SLCA	Streamlined Life Cycle Assessment
SLD	Slide, Sliding
SLP	Space Limited Payload
SLS	Satellite Landing System
SLS	Selective Laser Sintering
SLS	Side Lobe Suppression
SLT	Slat
SLV	Sleeve
SM	Standards Manual
SMART	Standard Modular Avionics Repair and Test
SMC	System Manager Controller
SMEL	Seat-Mounted Emergency Light
SMK	Smoke
SMKG	Smoking
SML	SB Modification Crossreference List
SMM	System Management Module
SMO	Stabilized Master Oscillator
SMR	Schedule Maintenance Report
SN	Serial Number
SNGL	Single
SNIF	Sensitivity for Normal Interface
SNMP	Simple Network Management Protocol
SNSG	Sensing
SNSR	Sensor
SO	Shutoff
SOL	Solenoid
SOMF	Structural Overload Monitoring Function
SOP	Standard Operating Procedure
SOS	Sell or Scrap
SOTM	System Operation Training Manual
SOV	Shut-off Valve
SOV	Shut-Off Valve
SOW	Statement of Work
SP	Sampling
SP	Space
SPAD	Scratchpad
SPASE	Single Point Audio System Earth
SPATIAL	System for Acquisition and Processing of ARINC and Logic
SPB	Seat Power Box
SPC	Smart PCMCIA Card
SPC	Spare Parts Classification
SPD	Speed
SPD/M	Speed-Mach
SPDB	Secondary Power Distribution Box
SPE	Seller Purchased Equipment
SPEC	Specification
SPF	Specific Pathogen Free
SPFK	Specific
SPKR	Speaker
SPL	Sound Pressure Level
SPLC	Splice
SPLR	Spoiler
SPLY	Supply
SPM	Signal Processing Module
SPM	Standard Practices Manual
SPMC	Service Process Material Control
SPMG	Shorted Permanent Magnet Generator
SPOP	Service Process Operation Procedure
SPP	Software Pin Programming
SPP-BA	SPP Broadcasting Application
SPPU	Station Position Pick-off Unit
SPR	Service and Performance Report
SPR	Spar
SPRDR	Spreader
SPRT	Support
SPS	Seat Power Supply
SPS	Service Process Solution
SPS/B	Superseded by
SPSS	Seat Power Supply System
SPST	Single Pole Single Throw
SPU	Starter Power Unit
SQ	Squelch
SQ-FT	Square-Feet
SQW	Square Wave
SR	Senior
SRD	Shorted Rotating Diode
SRE	Surveillance Radar Element of GCA
SRF	Servicing and aircraft condition parameters Reporting Function
SRI	aircraft Structural Repair Identification
SRKM	Structural Repair Kit Manual
SRM	Structural Repair Manual
SRPS	Safe Redundant Power Supply
SRPSU	Slide Release Power Supply Unit
SRPU	Safe Redundant Power Unit
SRS	Speed Reference System
SRU	Shop Replaceable Unit
SS	Sky/Shading
SSA	Side Slip Angle
SSA	System Safety Assessment
SSALS	Simplified Short Approach Light System
SSALSR	Simplified Short Approach Light System Runway Alignment
SSB	Single Side Band
SSC	Single Stroke Chime
SSCM	Stabiliser Struts Control Manifold
SSCVR	Solid State Cockpit Voice Recorder
SSE	Significant Structural Element
SSEC	Static Source Error Correction
SSFDR	Solid State Flight Data Recorder
SSG	System Configuration Guide
SSI	Structural Significant Item
SSID	Service Set Identifier
SSM	Sign Status Matrix
SSM	Solid State Memory
SSMM	Solid State Mass Memory
SSP	Significant In-Service Problems
SSP	System Signal Processor
SSP	System Specification
SSPC	Solid State Power Controller
SSR	Secondary Surveillance Radar
SSTDU	Side Stick Transducer and Damper Unit
SSTU	Side Stick Transducer Unit
SSU	Side Stick Unit
STA	Station
STA	Straight-in-Approach
STAB	Stabilizer
STAR	Standard Terminal Arrival Route
STARTG	Starting
STAT	Static
STBY	Standby
STC	Supplemental Type Certificate (FAA)
STD	Standard
STDY	Steady
STELLA	STair Electrical Light Lead Adapter
STELLA	STair Electrical Light Load Adapter
STG	Stage
STGR	Stringer
STIF	Stiffener
STL	Steel
STL	System Torque Limiter
STL	WARN Stall Warning
STOM	System Operation Training Manual
STR	Specific Key Characteristic
STR	Specific Tolerance Requirement
STR	Stringer
STRG	Steering
STRK	Stroke
STRL	Structural
STRM	Secure open and Trip Resident Memory
STRUCT	Structure
STS	Alignment Status
STS	Status
STWG	Stowage
STYPPLE	Sensitive Typical Phone Power Level
SUBMUX	Submultiplexer
SUCNL ACTN	Successional Action
SUCT	Suction
SUM	Summing
SUPPL	Supplementary
SUPPR	Suppressor
SUPSD BY	Superseded by
SURF	Surface
SURV	Surveillance
SV	Servovalve
SVA	Stator Vane Actuator
SVCE	Service
SVMTR	Servomotor
SVO	Servo
SVS	Synthetic Vision System
SW	Switch
SWTG	Switching
SWY	Stopway
SyDMP	System Design Modification Plan
SyDPAP	System Development and Process Assurance Plan
SyFAR	System FAL Acceptance Review
SyFFR	System First Flight Review
SYM	Symmetry
SYN REF	Synchro Reference
SYNC	Synchro, Synchronise
SYNTHR	Synthesizer
SYNTHR	Synthetizer
SyPDR	System Preliminary Design Review
SyPR	System Planning Review
SYS	System