|
Definition
|
Contraction
|
Usage
|
|
SafeAir OneFederal Aviation Administration
Administrator
|
FAA1
|
ATC
|
|
SafeAir TwoFederal Aviation Administration Deputy
Administrator
|
FAA2
|
ATC
|
|
saint
|
ST
|
GEN
|
|
same
direction traffic
|
SADT
|
GEN
|
|
sand
or sanded or sanding
|
SND
|
GEN
|
|
sandstorm
|
SS
|
METAR
|
|
sandstorm
or dusting
|
SA
|
ICAO
|
|
sanitary
|
SAN
|
ICAO
|
|
Saskatchewan
|
SASK
|
NWS
|
|
satellite
|
STLT
|
GEN
|
|
satellite
communication
|
SATCOM
|
ICAO
|
|
satellite-based
augmentation system
|
SBAS
|
ICAO
|
|
satisfy
or satisfactory
|
SATFY
|
GEN
|
|
Saturday
|
SAT
|
ICAO
|
|
say
time able
|
SAYTA
|
ATC
|
|
scattered
|
SCT
|
NWS
|
|
schedule
|
SKED
|
ICAO
|
|
scheduled
data base
|
SDB
|
GEN
|
|
scheduled
weather broadcast
|
SWB
|
GEN
|
|
sea
level
|
SL
|
GEN
|
|
sea
level pressure
|
SLP
|
METAR
|
|
seadrome
|
SEADRM
|
GEN
|
|
seaplane
base
|
SPB
|
GEN
|
|
search
|
SRCH
|
GEN
|
|
search
and rescue
|
SAR
|
GEN
|
|
search
and rescue region
|
SRR
|
ICAO
|
|
second
(in line)
|
SCND
|
GEN
|
|
second
(time)
|
SEC
|
GEN
|
|
secondary
|
SRY
|
ICAO
|
|
secondary
radar
|
SECRA
|
GEN
|
|
secondary
surveillance radar
|
SSR
|
GEN
|
|
section
|
SXN
|
NWS
|
|
sector
|
SCTR
|
GEN
|
|
sector
|
SECT
|
ICAO
|
|
sector
field office
|
SFO
|
GEN
|
|
sector
field unit
|
SFU
|
GEN
|
|
sector
manager
|
SECMR
|
GEN
|
|
security
|
SCTY
|
GEN
|
|
security
control of air traffic
|
SCAT
|
GEN
|
|
security
control of air traffic and air navigation aids
|
SCATANA
|
GEN
|
|
see
our message
|
SOMSG
|
GEN
|
|
see
your service
|
SYS
|
GEN
|
|
select
|
SLCT
|
GEN
|
|
selective
calling
|
SELCAL
|
ATC
|
|
selective
identification feature
|
SIF
|
ICAO
|
|
selfcorrecting
automatic navigation
|
SCAN
|
GEN
|
|
semiannual
|
S/A
|
GEN
|
|
semiautomatic
flight inspection
|
SAFI
|
GEN
|
|
semiautomatic
flight inspection aircraft
|
SAFI
|
GEN
|
|
semicolon
|
SCLN
|
GEN
|
|
send/receive
center
|
S/RC
|
GEN
|
|
sensitivity
|
SENS
|
GEN
|
|
separation
|
SEPN
|
GEN
|
|
sequence
|
SEQ
|
GEN
|
|
sequence
flashing lights
|
SFL
|
GEN
|
|
service
|
SER
|
ICAO
|
|
service
|
SVC
|
GEN
|
|
service
available during scheduled operations
|
HS
|
ICAO
|
|
service
available to meet operational requirements
|
HO
|
ICAO
|
|
serviceable
|
SVCBL
|
ICAO
|
|
serving
|
SVG
|
GEN
|
|
several
|
SVRL
|
GEN
|
|
severe
|
SEV
|
ICAO
|
|
severe
|
SVR
|
GEN
|
|
severe
local storms
|
SELS
|
NWS
|
|
severe
weather avoidance plan
|
SWAP
|
GEN
|
|
severe
weather forecast
|
WW
|
NWS
|
|
Shall
I cancel telegram number …? Or cancel telegram number …
|
QTA
|
ICAO
|
|
Shall
I run my test tape/a test sentence
|
QJH
|
ICAO
|
|
shallow
|
MI
|
METAR
|
|
shallow
|
SHLW
|
NWS
|
|
shallow
fog
|
MIFG
|
METAR
|
|
shift
(weather reports only)
|
SHFT
|
NWS
|
|
short
|
SHRT
|
GEN
|
|
short
approach lighting system
|
SALS
|
GEN
|
|
short
approach lighting system with sequenced flashing lights
|
SALSF
|
GEN
|
|
short
range
|
SRG
|
ICAO
|
|
short
range navigation system
|
SHORN
|
GEN
|
|
short
takeoff and landing
|
STOL
|
GEN
|
|
shortly
|
SHRTLY
|
NWS
|
|
shortwave
|
SHRTWV
|
GEN
|
|
should
|
SHUD
|
ATC
|
|
shower
|
SHWR
|
NWS
|
|
showers
|
SH
|
METAR
|
|
shutdown
|
SHTDN
|
GEN
|
|
Sick
leave
|
SL
|
GEN
|
|
Side
lobe suppression
|
SLS
|
GEN
|
|
Sierra
Nevada
|
SIERNEV
|
NWS
|
|
SIGMET
|
WS
|
NWS
|
|
signal
|
SGL
|
GEN
|
|
signature
|
SIG
|
GEN
|
|
signed
|
SGD
|
GEN
|
|
significant
|
SGFNT
|
GEN
|
|
significant
meteorological information
|
SIGMET
|
GEN
|
|
significant
weather
|
SIGWX
|
ICAO
|
|
simple
approach lighting system
|
SALS
|
ICAO
|
|
simplified
abbreviated visual approach slope indicator
|
SAVASI
|
GEN
|
|
simplified
directional facility
|
SDF
|
GEN
|
|
simplified
short approach lighting system
|
SSALS
|
GEN
|
|
simplified
short approach lighting system with runway alignment indicator
lights
|
SSALR
|
GEN
|
|
simplified
short approach lighting system with sequenced flashers
|
SSALF
|
GEN
|
|
simulated
approach
|
SIM
|
ATC
|
|
simulated
flame out
|
SFO
|
ATC
|
|
simultaneous
|
SIMUL
|
GEN
|
|
simultaneous
automatic broadcast homer
|
SABH
|
GEN
|
|
simultaneous
compass locator at middle marker
|
SLMM
|
GEN
|
|
simultaneous
compass locator at outer marker
|
SLOM
|
GEN
|
|
single
|
SNGL
|
GEN
|
|
single
channel simplex
|
SCS
|
GEN
|
|
single
frequency approach
|
SFA
|
GEN
|
|
single
isolated wheel load
|
SIWL
|
ICAO
|
|
single
sideband
|
SSB
|
ICAO
|
|
sky
clear
|
SKC
|
METAR
|
|
sky
condition (PIREP only)
|
SK
|
ATC
|
|
sleet
|
SLT
|
NWS
|
|
slight
|
SLGT
|
GEN
|
|
slight
chance
|
PROB30
|
METAR
|
|
slope
|
SLP
|
GEN
|
|
slow
|
SLO
|
GEN
|
|
slow
|
SLW
|
ICAO
|
|
slush
on runway
|
SLR
|
NWS
|
|
small
|
SML
|
GEN
|
|
smoke
|
FU
|
METAR
|
|
smooth
|
SMTH
|
NWS
|
|
snow
|
SN
|
ICAO
|
|
snow
|
SNW
|
NWS
|
|
snow
and ice on runway
|
SIR
|
NWS
|
|
snow
depth increase in past hour
|
SNOINCR
|
NWS
|
|
snow
grains (weather reports only)
|
SG
|
METAR
|
|
snow
pellets/small hail (less than 1/4”)
|
GS
|
METAR
|
|
snow
showers
|
SHSN
|
METAR
|
|
snow
showers
|
SNSH
|
ICAO
|
|
snowbank
|
SNBNK
|
NWS
|
|
snowfall
|
SNWFL
|
NWS
|
|
snowflake
|
SNFLK
|
NWS
|
|
so
as to reach
|
SATR
|
ATC
|
|
solargeophysical data
|
SGD
|
NWS
|
|
solid
|
SLD
|
NWS
|
|
sometime
|
SMTM
|
GEN
|
|
somewhat
|
SMWHT
|
GEN
|
|
souls
on board
|
SOB
|
ATC
|
|
south
or southern latitude
|
S
|
ICAO
|
|
south
plains
|
SPLNS
|
NWS
|
|
southbound
|
SB
|
ICAO
|
|
southbound
|
SBND
|
ATC
|
|
southeast
|
SE
|
ICAO
|
|
southeastbound
|
SEB
|
ICAO
|
|
southeasterly
(weather reports only)
|
SELY
|
NWS
|
|
southeastern
(weather reports only)
|
SERN
|
NWS
|
|
Southern
Region, FAA
|
ASO
|
GEN
|
|
southsouth east
|
SSE
|
ICAO
|
|
southsouth west
|
SSW
|
ICAO
|
|
southsoutheastern
(weather reports only)
|
SSERN
|
NWS
|
|
southsoutheastward
(weather reports only)
|
SSEWD
|
NWS
|
|
southsouthwestern
(weather reports only)
|
SSWRN
|
NWS
|
|
southsouthwestward
(weather reports only)
|
SSWWD
|
NWS
|
|
southwest
|
SW
|
ICAO
|
|
Southwest
Region, FAA
|
ASW
|
GEN
|
|
southwestbound
|
SWB
|
ICAO
|
|
southwesterly
(weather reports only)
|
SWLY
|
NWS
|
|
southwestern
(weather reports only)
|
SWRN
|
NWS
|
|
space
environment laboratory
|
SEL
|
GEN
|
|
space
environment service center
|
SESC
|
GEN
|
|
space
vehicle number
|
SVN
|
GEN
|
|
special
|
SPL
|
GEN
|
|
special
airreport
|
ARS
|
GEN
|
|
special
handling service for aircraft
|
XH
|
GEN
|
|
special
requisition priority number
|
SRPN
|
GEN
|
|
special
traffic management program
|
STMP
|
ATC
|
|
special
use airspace
|
SUA
|
GEN
|
|
special
VFR
|
SVFR
|
GEN
|
|
specification
|
SPEC
|
GEN
|
|
spectrometric
oil analysis program
|
SOAP
|
ATC
|
|
speed
|
SPD
|
GEN
|
|
speed
at pilots discretion
|
SAPD
|
GEN
|
|
speed
limiting point
|
SLP
|
ICAO
|
|
spiral
|
SPRL
|
GEN
|
|
spot
wind
|
SPOT
|
ICAO
|
|
spray
|
PY
|
METAR
|
|
spread
|
SPRD
|
NWS
|
|
sprinkle
|
SPKL
|
NWS
|
|
squadron
|
SQDN
|
GEN
|
|
squall
|
SQ
|
METAR
|
|
squall
line
|
SQLN
|
NWS
|
|
squawk
|
SQK
|
ATC
|
|
squawk
mode code
|
SMC
|
GEN
|
|
stability
index
|
SX
|
NWS
|
|
stabilized
local oscillator
|
STALO
|
GEN
|
|
stable
|
STBL
|
GEN
|
|
stack
entry time
|
SET
|
ATC
|
|
stagnation
|
STAGN
|
NWS
|
|
standard
|
STD
|
GEN
|
|
standard
2400’ highintensity approach
lighting system with sequenced flashers (Category I
configuration)
|
ALSF1
|
GEN
|
|
standard
2400’ highintensity approach
lighting system with sequenced flashers (Category II
configuration)
|
ALSF2
|
GEN
|
|
standard
form
|
SF
|
GEN
|
|
standard
holding pattern
|
SP
|
GEN
|
|
standard
holding procedure
|
SHP
|
GEN
|
|
standard
instrument approach
|
SIA
|
GEN
|
|
standard
instrument approach procedure
|
SIAP
|
GEN
|
|
standard
instrument departure
|
SID
|
GEN
|
|
standard
jet penetration
|
SJP
|
GEN
|
|
standard
low frequency range approach
|
SLRAP
|
GEN
|
|
standard
omni range approach
|
SORAP
|
GEN
|
|
standard
operating procedure
|
SOP
|
GEN
|
|
Standard
Positioning Service
|
SPS
|
ATC
|
|
standard
range approach
|
SR
|
GEN
|
|
standard
regional route transmitting frequencies
|
RUT
|
ICAO
|
|
standard
terminal arrival
|
STAR
|
GEN
|
|
standards
and recommended practices
|
SARPS
|
ICAO
|
|
standby
|
SDBY
|
GEN
|
|
standby
for further clearance
|
SBFC
|
ATC
|
|
standing
lenticular altocumulus
|
ACSL
|
NWS
|
|
standing
lenticular cirrocumulus
|
CCSL
|
NWS
|
|
standing
lenticular stratocumulus
|
SCSL
|
NWS
|
|
start
climb
|
STCLB
|
ATC
|
|
start
descent
|
STDST
|
ATC
|
|
station
|
STN
|
GEN
|
|
station
administrator
|
STADMR
|
GEN
|
|
station
manager
|
STMGR
|
GEN
|
|
station
pressure
|
SP
|
NWS
|
|
stationary
|
STNR
|
ICAO
|
|
stationary
|
STNRY
|
NWS
|
|
status
|
STS
|
ICAO
|
|
statute
mile
|
SM
|
GEN
|
|
statute
mile radius
|
SMR
|
GEN
|
|
steady
|
STDY
|
GEN
|
|
stereo
routes
|
STRO
|
GEN
|
|
stopend
(related to RVR)
|
END
|
ICAO
|
|
stopway
|
STWY
|
GEN
|
|
stopway
|
SWY
|
ICAO
|
|
stopway light
|
STWL
|
ICAO
|
|
stored
flight plan program
|
SFPP
|
ATC
|
|
stored
program for alpha numerics
|
SPAN
|
GEN
|
|
storm
|
STM
|
NWS
|
|
straight
in approach
|
STA
|
ICAO
|
|
straightin
approach
|
SI
|
GEN
|
|
strategic
plan of operation
|
SPO
|
ATC
|
|
strategic
planning team
|
SPT
|
ATC
|
|
strategic
navigation
|
SN
|
GEN
|
|
stratiform
|
STF
|
ICAO
|
|
stratiform
|
STFRM
|
NWS
|
|
stratocumulus
|
SC
|
NWS
|
|
stratus
|
ST
|
NWS
|
|
stratus
fractus
|
STFRA
|
NWS
|
|
strong
|
STG
|
NWS
|
|
subject
terminal control release
|
STR
|
ATC
|
|
subject
to
|
SUBJ
|
ICAO
|
|
subject
to correction
|
SUBFIX
|
GEN
|
|
submit
|
SMT
|
GEN
|
|
subside
|
SBSD
|
NWS
|
|
substitute
|
SUB
|
GEN
|
|
sufficient
|
SUF
|
GEN
|
|
suggest
|
SUG
|
GEN
|
|
summary
|
SMRY
|
GEN
|
|
Sunday
|
SUN
|
ICAO
|
|
sunrise
|
SR
|
GEN
|
|
sunrise
to sunset
|
HJ
|
ICAO
|
|
sunset
|
SS
|
GEN
|
|
sunset
to sunrise
|
HN
|
ICAO
|
|
super
high frequency
|
SHF
|
GEN
|
|
supercharge
|
SUPCHG
|
GEN
|
|
supercooled/freezing
|
FZ
|
METAR
|
|
superintendent
|
SUPT
|
GEN
|
|
superior
|
SUPR
|
GEN
|
|
supersede
|
SUPSD
|
GEN
|
|
supersonic
transport
|
SST
|
ICAO
|
|
supervisor
|
SUPVR
|
GEN
|
|
supervisory
electronics specialist
|
SES
|
GEN
|
|
supplement
|
SUPPL
|
GEN
|
|
supplemental
weather service location
|
SWSL
|
ATC
|
|
supplementary
aviation weather reporting station
|
SAWRS
|
GEN
|
|
supplementary
flight plan
|
SPL
|
ICAO
|
|
supply
|
SUP
|
GEN
|
|
surface
|
SFC
|
ICAO
|
|
surface
aviation observation
|
SAO
|
NWS
|
|
surface
movement control
|
SMC
|
ICAO
|
|
surface
movement guidance and control system
|
SMGCS
|
GEN
|
|
surface
movement radar
|
SMR
|
ICAO
|
|
surface
picture
|
SURPIC
|
ATC
|
|
surround
|
SRND
|
GEN
|
|
surveillance
approach
|
SA
|
GEN
|
|
surveillance
radar approach
|
SRA
|
ICAO
|
|
surveillance
radar element of precision approach radar system
|
SRE
|
ICAO
|
|
suspend
|
SUSP
|
GEN
|
|
swelling
|
SWLG
|
NWS
|
|
synchronous
meteorological satellite
|
SMS
|
GEN
|
|
synopsis
|
SYNS
|
NWS
|
|
synoptic
|
SYNOP
|
NWS
|
|
system
|
SYS
|
GEN
|
|
System
Command Center
|
SCC
|
GEN
|
|
system
engineer
|
SE
|
GEN
|
|
systems
maintenance sector
|
SMS
|
GEN
|
|
systems
navigation
|
SN
|
GEN
|