|
Contraction
|
Definition
|
Usage
|
|
L
|
Left
|
ICAO
|
|
L
|
Locator
|
ICAO
|
|
L
|
Logistics
|
GEN
|
|
L/MF
|
low/medium frequency
|
GEN
|
|
LA
|
low
approach
|
ATC
|
|
LAA
|
local airport
advisory
|
GEN
|
|
LAADR
|
low
altitude
arrival/departure
routing
|
ATC
|
|
LAAS
|
Local Area
Augmentation System
|
ATC
|
|
LAB
|
laboratory
|
GEN
|
|
LABRDR
|
labrador
|
NWS
|
|
LABS
|
leased Service A/B
system
|
ATC
|
|
LABS
|
low
altitude bombing
system
|
GEN
|
|
LADP
|
local airport
deicing plan
|
ATC
|
|
LAM
|
logical
acknowledgement
|
ICAO
|
|
LAN
|
inland
|
ICAO
|
|
LARCT
|
last
radio contact
|
ATC
|
|
LAT
|
latitude
|
GEN
|
|
LAWRS
|
Limited Aviation
Weather Reporting
Station
|
GEN
|
|
LB
|
left
base
|
ATC
|
|
LB
|
pounds (weight)
|
GEN
|
|
LC
|
local control
|
GEN
|
|
LCA
|
locally
|
ICAO
|
|
LCL
|
local or locally
|
GEN
|
|
LCT
|
locate
|
GEN
|
|
LCTMP
|
little change in
temperature
|
NWS
|
|
LD
|
long
distance
|
GEN
|
|
LDA
|
landing distance
available
|
ICAO
|
|
LDA
|
localizer type
directional aid
|
ATC
|
|
LDG
|
landing
|
ICAO
|
|
LDI
|
landing direction
indicator
|
ICAO
|
|
LDIN
|
lead
in lighting system
|
GEN
|
|
LEN
|
length
|
ICAO
|
|
LETFO
|
letter follows
|
GEN
|
|
LF
|
low
frequency
|
GEN
|
|
LFC
|
laminar flow control
|
GEN
|
|
LFNT
|
low
frequency
intersection
|
GEN
|
|
LFR
|
low
frequency radio
range
|
GEN
|
|
LFT
|
lift
|
NWS
|
|
LGRNG
|
long
range
|
NWS
|
|
LGT
|
light
|
GEN
|
|
LGTD
|
lighted
|
ICAO
|
|
LGWV
|
long
wave
|
GEN
|
|
LICOF
|
land
lines communications
facilities
|
GEN
|
|
LIFR
|
low
IFR (weather reports
only)
|
NWS
|
|
LIH
|
light intensity high
|
ICAO
|
|
LIL
|
light intensity low
|
ICAO
|
|
LIM
|
light intensity
medium
|
ICAO
|
|
LIN
|
linearity
|
GEN
|
|
LIRL
|
low
intensity runway
edge lights
|
GEN
|
|
LK
|
lake
|
NWS
|
|
LKLY
|
likely
|
GEN
|
|
LKTYP
|
like
type
|
ATC
|
|
LL
|
landline
|
GEN
|
|
LLWAS
|
low
level wind shear
alert system
|
GEN
|
|
LLWS
|
low
level wind shear
|
GEN
|
|
LLZ
|
localizer
|
ICAO
|
|
LM
|
locator middle
|
ICAO
|
|
LMM
|
compass locator at
ILS middle marker
|
GEN
|
|
LMT
|
limit
|
GEN
|
|
LMT
|
Local Mean Time
|
ICAO
|
|
LN
|
line
|
GEN
|
|
LNAV
|
lateral navigation
(from TERPSA1)
|
GEN
|
|
LND
|
Land
|
GEN
|
|
LNDG
|
landing
|
GEN
|
|
LO
|
liaison officer
|
GEN
|
|
LO
|
outer locator
|
ICAO
|
|
LOA
|
letter of agreement
|
GEN
|
|
LOC
|
localizer
|
ICAO |
|
LOCOR
|
local coordinator
|
GEN
|
|
LODISNAV
|
long
distance navigation
|
GEN
|
|
LOEAT
|
lowest temperature
equaled for all time
|
NWS
|
|
LOEFM
|
lowest temperature
equaled for the
month
|
NWS
|
|
LOESE
|
lowest temperature
equaled so early
|
NWS
|
|
LOESL
|
lowest temperature
equaled so late
|
NWS
|
|
LOM
|
compass locator at
ILS outer marker
|
GEN
|
|
LONG
|
longitude
|
GEN
|
|
LONGL
|
longitudinal
|
GEN
|
|
LOP
|
line
of position
|
GEN
|
|
LORAC
|
long
range accuracy
|
GEN
|
|
LORAN
|
long
range air navigation
system
|
GEN
|
|
LOTMP
|
lowest temperature
|
NWS
|
|
LOXAT
|
lowest temperature
exceeded for all
time
|
NWS
|
|
LOXFM
|
lowest temperature
exceeded for the
month
|
NWS
|
|
LOXSE
|
lowest temperature
exceeded so early
|
NWS
|
|
LOXSL
|
lowest temperature
exceeded so late
|
NWS
|
|
LP
|
left
traffic pattern
|
ATC
|
|
LP
|
linear polarization
|
ATC
|
|
LP
|
liquid propane
|
GEN
|
|
LP
|
localizer
performance without
vertical guidance
|
GEN
|
|
LPV
|
localizer
performance with
vertical guidance
|
ICAO
|
|
LR
|
The
last message
received by me was
….
|
ICAO
|
|
LRA
|
landing rights
airport
|
GEN
|
|
LRCOM
|
long
range VHF/UHF
communications
|
GEN
|
|
LRG
|
large
|
GEN
|
|
LRG
|
long
range
|
GEN
|
|
LRS
|
lake
reporting service
|
GEN
|
|
LS
|
left
side
|
ATC
|
|
LS
|
The
last message sent by
me was …or last
message was …
|
ICAO
|
|
LSQ
|
line
squall
|
ICAO
|
|
LSR
|
loose snow on runway
|
NWS
|
|
LST
|
Local Standard Time
|
GEN
|
|
LT
|
turn
left after takeoff
|
ATC
|
|
LTAV
|
light and variable
|
GEN
|
|
LTD
|
limited
|
ICAO
|
|
LTF
|
local training
flight
|
ATC
|
|
LTFC
|
landing traffic
|
ATC
|
|
LTGCA
|
lightning
cloudtoair
|
NWS
|
|
LTGCC
|
lightning
cloudtocloud
|
NWS
|
|
LTGCCCG
|
lightning
cloudtocloud,
cloud to ground
|
NWS
|
|
LTGCG
|
lightning
cloudtoground
|
NWS
|
|
LTGCW
|
lightning
cloudtowater
|
NWS
|
|
LTGIC
|
lightning in clouds
|
NWS
|
|
LTL
|
little
|
GEN
|
|
LTLCG
|
little change
|
NWS
|
|
LTNG
|
lightning
|
NWS
|
|
LTR
|
later
|
GEN
|
|
LTR
|
letter
|
GEN
|
|
LTT
|
landline
teletypewriter
|
ICAO
|
|
LTTR
|
latter
|
GEN
|
|
LV
|
leaving
|
GEN
|
|
LV
|
light and variable
|
ICAO
|
|
LVE
|
leave or leaving
|
ICAO
|
|
LVG
|
leaving
|
ATC
|
|
LVL
|
level
|
ATC
|
|
LVO
|
low
visibility
operations |
GEN
|
|
LVLOF
|
level off
|
ATC
|
|
LWR
|
lower
|
GEN
|
|
LX
|
low
index
|
NWS
|
|
LYR
|
layer or layered or
layers
|
NWS
|
