U.S. DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
Air Traffic Organization Policy

ORDER
JO 7340.2D
Effective Date:
May 2, 2013
 
     

Subject:  Contractions
       Includes: Change 1 effective 8/22/13 and Change 2 effective 12/12/13    
 

[Back to Section 1. Decode]

S

Contraction

Definition

Usage

S

South or southern latitude

ICAO

S/A

semi­annual

GEN

S/RC

send/receive center

GEN

SA

duststorm, sandstorm, rising dust or sand

METAR

SA

record observation (weather reports only)

NWS

SA

sandstorm or dusting

ICAO

SA

surveillance approach

GEN

SABH

simultaneous automatic broadcast homer

GEN

SADT

same direction traffic

GEN

SAFI

semi­automatic flight inspection

GEN

SAFI

semi­automatic flight inspection aircraft

GEN

SALS

short approach lighting system

GEN

SALS

simple approach lighting system

ICAO

SALSF

short approach lighting system with sequenced flashing lights

GEN

SAN

sanitary

ICAO

SAO

surface aviation observation

NWS

SAP

as soon as possible

ICAO

SAPD

speed at pilots discretion

GEN

SAR

search and rescue

GEN

SARPS

standards and recommended practices

ICAO

SASK

Saskatchewan

NWS

SATCOM

satellite communication

ICAO

SATFY

satisfy or satisfactory

GEN

SATR

so as to reach

ATC

SAVASI

simplified abbreviated visual approach slope indicator

GEN

SAWRS

supplementary aviation weather reporting station

GEN

SAYTA

say time able

ATC

SB

southbound

ICAO

SBAS

satellite-based augmentation system

ICAO

SBFC

standby for further clearance

ATC

SBND

southbound

ATC

SBSD

subside

NWS

SC

stratocumulus

NWS

SCAN

self­correcting automatic navigation

GEN

SCANO

automatic scanning unit out of service

GEN

SCAOK

automatic scanning unit returned to service

GEN

SCAT

security control of air traffic

GEN

SCATANA

security control of air traffic and air navigation aids

GEN

SCC

System Command Center

GEN

SCLN

semicolon

GEN

SCND

second (in line)

GEN

SCS

single channel simplex

GEN

SCSL

standing lenticular stratocumulus

NWS

SCT

scattered

NWS

SCTR

sector

GEN

SCTY

security

GEN

SDB

scheduled data base

GEN

SDBY

standby

GEN

SDF

simplified directional facility

GEN

SE

south­east

ICAO

SE

system engineer

GEN

SEADRM

seadrome

GEN

SEB

south­eastbound

ICAO

SEC

second (time)

GEN

SECMR

sector manager

GEN

SECRA

secondary radar

GEN

SECT

sector

ICAO

SEL

space environment laboratory

GEN

SELCAL

selective calling

ATC

SELS

severe local storms

NWS

SELY

southeasterly (weather reports only)

NWS

SENS

sensitivity

GEN

SEPN

separation

GEN

SEQ

sequence

GEN

SER

service

ICAO

SERN

southeastern (weather reports only)

NWS

SES

supervisory electronics specialist

GEN

SESC

space environment service center

GEN

SET

stack entry time

ATC

SEV

severe

ICAO

SF

standard form

GEN

SFA

single frequency approach

GEN

SFC

surface

ICAO 

SFERICS

atmospherics

NWS

SFL

sequence flashing lights

GEN

SFO

sector field office

GEN

SFO

simulated flame out

ATC

SFPP

stored flight plan program

ATC

SFU

sector field unit

GEN

SG

snow grains (weather reports only)

METAR

SGD

signed

GEN

SGD

solar­geophysical data

NWS

SGFNT

significant

GEN

SGL

signal

GEN

SH

showers

METAR

SHF

super high frequency

GEN

SHFT

shift (weather reports only)

NWS

SHGR

hail showers

METAR

SHGS

hail showers (small)

METAR

SHLW

shallow

NWS

SHORN

short range navigation system

GEN

SHP

standard holding procedure

GEN

SHPL

ice pellet showers

METAR

SHRA

rain showers

METAR

SHRT

short

GEN

SHRTLY

shortly

NWS

SHRTWV

shortwave

GEN

SHSN

snow showers

METAR

SHTDN

shutdown

GEN

SHUD

should

ATC

SHWR

shower

NWS

SI

straight­in approach

GEN

SIA

standard instrument approach

GEN

SIAP

standard instrument approach procedure

GEN

SID

standard instrument departure

GEN

SIERNEV

Sierra Nevada

NWS

SIF

selective identification feature

ICAO

SIG

signature

GEN

SIGMET

significant meteorological information

GEN

SIGWX

significant weather

ICAO

SIM

simulated approach

ATC

SIMUL

simultaneous

GEN

SIR

snow and ice on runway

NWS

SIWL

single isolated wheel load

ICAO

SJP

standard jet penetration

GEN

SK

sky condition (PIREP only)

ATC

SKC

sky clear

METAR

SKED

schedule

ICAO

SL

sea level

GEN

SL

sick leave

GEN

SLCT

select

GEN

SLD

solid

NWS

SLGT

slight

GEN

SLMM

simultaneous compass locator at middle marker

GEN

SLO

slow

GEN

SLOM

simultaneous compass locator at outer marker

GEN

SLP

sea level pressure

METAR

SLP

slope

GEN

SLP

speed limiting point

ICAO

SLR

slush on runway

NWS

SLRAP

standard low frequency range approach

GEN

SLS

side lobe suppression

GEN

SLT

sleet

NWS

SLW

slow

ICAO

SM

statute mile

GEN

SMC

squawk mode code

GEN

SMC

surface movement control

ICAO

SML

small

GEN

SMR

statute mile radius

GEN

SMR

surface movement radar

ICAO

SMRY

summary

GEN

SMS

synchronous meteorological satellite

GEN

SMS

systems maintenance sector

GEN

SMT

submit

GEN

SMTH

smooth

NWS

SMTM

sometime

GEN

SMWHT

somewhat

GEN

SN

snow

ICAO

SN

strategic navigation

GEN

SN

systems navigation

GEN

SNBNK

snowbank

NWS

SND

sand or sanded or sanding

GEN

SNFLK

snowflake

NWS

SNGL

single

GEN

SNOINCR

snow depth increase in past hour

NWS

SNOWTAM

NOTAM reporting the presence or removal of hazardous conditions due to snow, ice, slush or standing water associated with snow, slush or ice on the movement area

ICAO

SNSH

snow showers

ICAO

SNW

snow

NWS

SNWFL

snowfall

NWS

SOAP

spectrometric oil analysis program

ATC

SOB

souls on board

ATC

SOCC

NORAD Sector Operations Control Center

GEN

SOMSG

see our message

GEN

SOP

standard operating procedure

GEN

SORAP

standard omni range approach

GEN

SP

standard holding pattern

GEN

SP

station pressure

NWS

SPAN

stored program for alpha numerics

GEN

SPB

seaplane base

GEN

SPCLY

especially

GEN

SPD

speed

GEN

SPEC

specification

GEN

SPECI

aviation selected special weather report

METAR

SPKL

sprinkle

NWS

SPL

special

GEN

SPL

supplementary flight plan

ICAO

SPLNS

south plains

NWS

SPO

strategic plan of operation

ATC

SPOT

spot wind

ICAO

SPRD

spread

NWS

SPRL

spiral

GEN

SPS

Standard Positioning Service

ATC

SPT

strategic planning team

ATC

SQ

squall

METAR

SQDN

squadron

GEN

SQK

squawk

ATC

SQLN

squall line

NWS

SR

standard range approach

GEN

SR

sunrise

GEN

SRA

surveillance radar approach

ICAO

SRCH

search

GEN

SRE

surveillance radar element of precision approach radar system

ICAO

SRG

short range

ICAO

SRND

surround

GEN

SRPN

special requisition priority number

GEN

SRR

search and rescue region

ICAO

SRY

secondary

ICAO

SS

sandstorm

METAR

SS

sunset

GEN

SSALF

simplified short approach lighting system with sequenced flashers

GEN

SSALR

simplified short approach lighting system with runway alignment indicator lights

GEN

SSALS

simplified short approach lighting system

GEN

SSB

single sideband

ICAO

SSE

south­south east

ICAO

SSERN

south­southeastern (weather reports only)

NWS

SSEWD

south­southeastward (weather reports only)

NWS

SSNO

request no SIDs or STARs

ATC

SSR

secondary surveillance radar

GEN

SST

supersonic transport

ICAO

SSW

south­south west

ICAO

SSWRN

south­southwestern (weather reports only)

NWS

SSWWD

south­southwestward (weather reports only)

NWS

ST

saint

GEN

ST

stratus

NWS

STA

straight in approach

ICAO

STADMR

station administrator

GEN

STAGN

stagnation

NWS

STALO

stabilized local oscillator

GEN

STAR

standard terminal arrival

GEN

STATE

military, customs, or police services

ICAO

STBL

stable

GEN

STCLB

start climb

ATC

STD

standard

GEN

STDST

start descent

ATC

STDY

steady

GEN

STF

stratiform

ICAO

STFRA

stratus fractus

NWS

STFRM

stratiform

NWS

STG

strong

NWS

STLT

satellite

GEN

STM

storm

NWS

STMGR

station manager

GEN

STMP

special traffic management program

ATC

STN

station

GEN

STNR

stationary

ICAO

STNRY

stationary

NWS

STOL

short take­off and landing

GEN

STR

subject terminal control release

ATC

STRO

stereo routes

GEN

STS

status

ICAO

STWL

stopway light

ICAO

STWY

stopway

GEN

SUA

special use airspace

GEN

SUB

substitute

GEN

SUBFIX

subject to correction

GEN

SUBJ

subject to

ICAO

SUF

sufficient

GEN

SUG

suggest

GEN

SUP

supply

GEN

SUPCHG

supercharge

GEN

SUPPL

supplement

GEN

SUPPS

regional supplementary procedures

ICAO

SUPR

superior

GEN

SUPSD

supersede

GEN

SUPT

superintendent

GEN

SUPVR

supervisor

GEN

SURPIC

surface picture

ATC

SUSP

suspend

GEN

SVC

service

GEN

SVCBL

serviceable

ICAO

SVFR

special VFR

GEN

SVG

serving

GEN

SVN

space vehicle number

GEN

SVR

severe

GEN

SVRL

several

GEN

SW

south­west

ICAO

SWAP

severe weather avoidance plan

GEN

SWB

scheduled weather broadcast

GEN

SWB

south­westbound

ICAO

SWLG

swelling

NWS

SWLY

southwesterly (weather reports only)

NWS

SWRN

southwestern (weather reports only)

NWS

SWSL

supplemental weather service location

ATC

SWY

stopway

ICAO

SX

stability index

NWS

SXN

section

NWS

SYD

release subject your discretion

GEN

SYNOP

synoptic

NWS

SYNS

synopsis

NWS

SYS

see your service

GEN

SYS

system

GEN

 

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