AIM
4/20/23
COND . . . . . . . . Condition
CONS . . . . . . . . . Continuous
CONST . . . . . . . Construction
or
constructed
CPDLC . . . . . . . . Controller Pilot Data Link
Communications
CTC . . . . . . . . . . Contact
CUST . . . . . . . . . Customs
D
DA . . . . . . . . . . . Decision altitude
DEG . . . . . . . . . . Degrees
DEP . . . . . . . . . . Depart
or
Departure
DER . . . . . . . . . . Departure end of the runway
DH . . . . . . . . . . . Decision Height
DIST . . . . . . . . . . Distance
DLY . . . . . . . . . . Daily
DP . . . . . . . . . . . Dew Point Temperature
DPT . . . . . . . . . . Depth
DTHR . . . . . . . . . Displaced Runway Threshold
E
E . . . . . . . . . . . . . East
or
eastern longititude
EB . . . . . . . . . . . Eastbound
EMERG . . . . . . . Emergency
ENE . . . . . . . . . . East
−
northeast
EQPT . . . . . . . . . Equipment
ESE . . . . . . . . . . East
−
southeast
EST . . . . . . . . . . Estimate
or
estimated
or
estimation
(message type designator)
EXC . . . . . . . . . . Except
F
FL . . . . . . . . . . . . Flight level
FREQ . . . . . . . . . Frequency
FRI . . . . . . . . . . . Friday
FSS . . . . . . . . . . . Flight Service Station
FST . . . . . . . . . . . First
FT . . . . . . . . . . . . Feet
(dimensional unit)
G
G . . . . . . . . . . . . . Green
GA . . . . . . . . . . . General aviation
GLD . . . . . . . . . . Glider
GND . . . . . . . . . . Ground
GP . . . . . . . . . . . Glide Path
GRVL . . . . . . . . . Gravel
H
HEL . . . . . . . . . . Helicopter
HGT . . . . . . . . . . Height
or
height above
HLDG . . . . . . . . Holding
HLP . . . . . . . . . . Heliport
HVY . . . . . . . . . . Heavy
I
IFR . . . . . . . . . . . Instrument Flight Rules
ILS . . . . . . . . . . . Instrument Landing System
IM . . . . . . . . . . . . Inner Marker
INOP . . . . . . . . . Inoperative
INT . . . . . . . . . . . Intersection
K
KT . . . . . . . . . . . Knots
L . . . . . . . . . . . . .
L
Left
(preceded by runway designator
number to identify a parallel runway)
LAT . . . . . . . . . . Latitude
LDA . . . . . . . . . . Landing Distance Available
LDG . . . . . . . . . . Landing
LEN . . . . . . . . . . Length
LGT . . . . . . . . . . Light
or
lighting
LGTD . . . . . . . . . Lighted
LOC . . . . . . . . . . Localizer
LONG . . . . . . . . Longitude
M
MAINT . . . . . . . Maintenance
MBST . . . . . . . . . Microburst
MIL . . . . . . . . . . Military
MIN . . . . . . . . . . Minutes
MNT . . . . . . . . . . Monitor
or
monitoring
or
monitored
MON . . . . . . . . . Monday
MOV . . . . . . . . . Move
or
moving
or
movement
N
N . . . . . . . . . . . . . North
NAVAID . . . . . . . Navigational aid
NB . . . . . . . . . . . Northbound
NDB . . . . . . . . . . Nondirectional Radio Beacon
NE . . . . . . . . . . . Northeast
NEB . . . . . . . . . . Northeast bound
NM . . . . . . . . . . . Nautical Mile/s
NNE . . . . . . . . . . North
−
northeast
NNW . . . . . . . . . North
−
northwest
NOV . . . . . . . . . . November
NW . . . . . . . . . . . Northwest
NWB . . . . . . . . . Northwest bound
O
OBSC . . . . . . . . . Obscure
or
obscured
or
obscuring
OBST . . . . . . . . . Obstacle
OPN . . . . . . . . . . Open
or
opening
or
opened
OPS . . . . . . . . . . Operations
P
PAPI . . . . . . . . . . Precision Approach Path Indicator
PARL . . . . . . . . . Parallel
PAX . . . . . . . . . . Passenger/s
PCL . . . . . . . . . . Pilot Controlled Lighting
PCT . . . . . . . . . . Percent
PERM . . . . . . . . . Permanent
PJE . . . . . . . . . . . Parachute Jumping Activities
PLA . . . . . . . . . . Practice Low Approach
PPR . . . . . . . . . . Prior Permission Required
PRN . . . . . . . . . . Pseudo
−
random Navigation
PT . . . . . . . . . . . . Procedure Turn
R
R . . . . . . . . . . . . . Red
R . . . . . . . . . . . . . Right
(preceded by runway designator
number to identify a parallel runway)
RAI . . . . . . . . . . . Runway Alignment Indicator
RCL . . . . . . . . . . Runway Centerline
5
−
1
−
8
Preflight