|
Contraction
|
Definition
|
Usage
|
|
P
|
in RVR indicates
visibility greater
than highest
reportable sensor
value (e.g. P600FT)
|
METAR
|
|
P
|
Pacific Standard
Time (time group
only)
|
NWS
|
|
P
|
polar (air mass)
|
NWS
|
|
P
|
prohibited area
|
ICAO
|
|
P/CG
|
pilot controller
glossary
|
GEN
|
|
P6SM
|
visibility greater
than 6 SM (TAF only)
|
METAR
|
|
PA
|
precision approach
|
GEN
|
|
PA
|
pressure altitude
|
GEN
|
|
PAC
|
Pacific
|
NWS
|
|
PACF
|
parent FSS assumes
control of parttime
FSS
|
GEN
|
|
PADRA
|
pass to air defense
radar
|
ATC
|
|
PAEW
|
personnel and
equipment working
|
GEN
|
|
PAJA
|
parachute jumping
activities
|
GEN
|
|
PALS
|
precision approach
lighting system
|
ICAO
|
|
PALT
|
present altitude
|
ATC
|
|
PANS
|
procedures for air
navigation services
|
ICAO
|
|
PAPI
|
precision approach
path indicator
|
ICAO
|
|
PAR
|
precision approach
radar
|
ICAO
|
|
PARA
|
paragraph
|
GEN
|
|
PAREN
|
parenthesis
|
GEN
|
|
PARL
|
parallel
|
ICAO
|
|
PARROT
|
Transponder
|
GEN
|
|
PARROT
|
Position adjustable
range reference
orientation
transponder
|
ATC
|
|
PAT
|
pattern
|
GEN
|
|
PATC
|
Precision approach
terrain chart
|
ICAO
|
|
PATWAS
|
pilots automatic
telephone weather
answering service
|
GEN
|
|
PAU
|
present address
unknown
|
GEN
|
|
PAX
|
passenger
|
ICAO
|
|
PBCT
|
proposed boundary
crossing time
|
GEN
|
|
PBL
|
probable
|
NWS
|
|
PBS
|
public buildings
service
|
GEN
|
|
PCA
|
positive control
area
|
GEN
|
|
PCD
|
proceed
|
ICAO
|
|
PCK
|
pilot check
|
ATC
|
|
PCL
|
pilot controlled
lighting
|
GEN
|
|
PCL
|
Pilot controlled
lighting
|
ICAO
|
|
PCN
|
pavement
classification
number
|
ICAO
|
|
PCPN
|
precipitation
|
NWS
|
|
PCS
|
permanent change of
station
|
GEN
|
|
PD
|
period
|
GEN
|
|
PDAR
|
preferential
arrival/departure
route (Stage A)
|
GEN
|
|
PDC
|
Predeparture
clearance
|
ICAO
|
|
PDDC
|
proceed directly on
course
|
ATC
|
|
PDMT
|
predominant
|
NWS
|
|
PDMT
|
predominate
|
NWS
|
|
PDOP
|
Position Dilution of
Precision
|
ATC
|
|
PDR
|
preferential
departure route
(Stage A)
|
GEN
|
|
PDW
|
priority delayed
weather
|
NWS
|
|
PEN
|
peninsula
|
NWS
|
|
PENT
|
penetrate or
penetration
|
ATC
|
|
PER
|
performance
|
ICAO
|
|
PERCOM
|
peripheral
communications
|
GEN
|
|
PERF
|
perforator
|
GEN
|
|
PERM
|
permanent
|
ICAO
|
|
PFSV
|
pilot to forecaster
service
|
GEN
|
|
PGTSND
|
Puget Sound
|
NWS
|
|
PHYS
|
physical
|
GEN
|
|
PIB
|
Preflight
information bulletin
|
ICAO
|
|
PIBAL
|
pilot balloon
observation
|
NWS
|
|
PIC
|
pilot in command
|
GEN
|
|
PIR
|
precision instrument
runway
|
GEN
|
|
PIREP
|
pilot weather report
|
GEN
|
|
PIRFC
|
pilot requests
forecast
|
GEN
|
|
PISE
|
no pilot balloon
observation due to
unfavorable sea
conditions
|
NWS
|
|
PISO
|
no pilot balloon
observation due to
snow
|
NWS
|
|
PIT
|
pilot instructor
training
|
GEN
|
|
PIWI
|
no pilot balloon
observation due to
high, or gusty,
surface wind
|
NWS
|
|
PJE
|
parachute jumping
exercise
|
ICAO
|
|
PK WND
|
peak wind (weather
reports only)
|
NWS
|
|
PL
|
ice pellets
|
METAR
|
|
PLA
|
practice low
approach
|
ICAO
|
|
PLASI
|
pulsating visual
approach slope
indicators
|
ATC
|
|
PLAT
|
present latitude
|
ATC
|
|
PLF
|
private line
telephone
|
GEN
|
|
PLN
|
flight plan
|
ICAO
|
|
PLOB
|
place of birth
|
GEN
|
|
PLONG
|
present longitude
|
ATC
|
|
PLS
|
please
|
GEN
|
|
PLT
|
private line
teletypewriter
|
GEN
|
|
PLVL
|
present level
|
ICAO
|
|
PLW
|
plow (snow)
|
NWS
|
|
PM
|
post meridiem
|
GEN
|
|
PMSN
|
permission
|
GEN
|
|
PMT
|
permit
|
GEN
|
|
PN
|
prior notice
required
|
ICAO
|
|
PNHDL
|
panhandle
|
NWS
|
|
PNR
|
point of no return
|
ATC
|
|
PO
|
dust devils
|
METAR
|
|
PO
|
post office
|
GEN
|
|
PO
|
purchase order
|
GEN
|
|
POA
|
privately owned
aircraft
|
GEN
|
|
POB
|
persons on board
|
ICAO
|
|
POC
|
proceed or
proceeding on course
|
ATC
|
|
POS
|
positive
|
GEN
|
|
POSS
|
possible
|
ICAO
|
|
POV
|
privately owned
vehicle
|
GEN
|
|
PP
|
pay period (number)
|
GEN
|
|
PPI
|
plan position
indicator
|
ICAO
|
|
PPINA
|
radar weather report
not available (or
omitted for a reason
different than those
otherwise stated)
|
NWS
|
|
PPINE
|
radar weather report
no echoes observed
|
NWS
|
|
PPINO
|
radar weather report
equipment
inoperative due to
breakdown
|
NWS
|
|
PPIOK
|
radar weather report
equipment operation
resumed
|
NWS
|
|
PPIOM
|
radar weather report
equipment
inoperative due to
maintenance
|
NWS
|
|
PPR
|
prior permission
required
|
ICAO
|
|
PPS
|
propose
|
GEN
|
|
PPSN
|
present position
|
ATC
|
|
PR
|
partial
|
METAR
|
|
PR
|
photo reconnaissance
|
GEN
|
|
PRBL
|
probable
|
GEN
|
|
PRBLTY
|
probability
|
NWS
|
|
PRBO
|
position relief
briefing observed
|
ATC
|
|
PRCF
|
parent FSS returns
control of parttime
FSS
|
GEN
|
|
PRCHT
|
parachute
|
GEN
|
|
PRCTN
|
precaution
|
GEN
|
|
PRECD
|
precede
|
GEN
|
|
PREF
|
preferred
|
ATC
|
|
PRES
|
pressure
|
GEN
|
|
PRESFR
|
pressure falling
rapidly
|
NWS
|
|
PRESRR
|
pressure rising
rapidly
|
NWS
|
|
PREV
|
previous
|
GEN
|
|
PRFG
|
fog partial
|
METAR
|
|
PRI
|
primary
|
ICAO
|
|
PRIM
|
primary
|
GEN
|
|
PRIN
|
principal
|
GEN
|
|
PRIND
|
present indications
are
|
GEN
|
|
PRIRA
|
primary radar
|
GEN
|
|
PRJMP
|
pressure jump
(weather reports
only)
|
NWS
|
|
PRKG
|
parking
|
ICAO
|
|
PRN
|
pseudo random noise
|
GEN
|
|
PROB
|
probability
|
ICAO
|
|
PROB30
|
slight chance
|
METAR
|
|
PROB40
|
probability 40
percent
|
METAR
|
|
PROC
|
procedure
|
GEN
|
|
PROCD
|
proceed
|
GEN
|
|
PROG
|
prognosis or
prognostic
|
NWS
|
|
PROG
|
progress
|
GEN
|
|
PROP
|
propeller
|
GEN
|
|
PROPA
|
propagation
|
GEN
|
|
PROSIG
|
procedure signal
|
GEN
|
|
PROV
|
provisional
|
ICAO
|
|
PRP
|
prepare
|
GEN
|
|
PRSNT
|
present
|
NWS
|
|
PRST
|
persist
|
GEN
|
|
PRVD
|
provide
|
GEN
|
|
PS
|
passenger service
|
GEN
|
|
PS
|
plus
|
NWS
|
|
PSBL
|
possible
|
GEN
|
|
PSBT
|
pilot selfbriefing
terminal
|
GEN
|
|
PSG
|
passage
|
NWS
|
|
PSG
|
passing
|
NWS
|
|
PSGR
|
passenger
|
GEN
|
|
PSN
|
position
|
GEN
|
|
PSNAL
|
personal
|
GEN
|
|
PSNL
|
personnel
|
GEN
|
|
PSNRP
|
position report
|
ATC
|
|
PSP
|
pierced steel
planking
|
ICAO
|
|
PSR
|
packed snow on
runway
|
NWS
|
|
PSR
|
Primary surveillance
radar
|
ICAO
|
|
PSRI
|
position subject to
return of incumbent
|
GEN
|
|
PSRS
|
position subject to
rotating shifts
|
GEN
|
|
PST
|
Pacific Standard
Time
|
GEN
|
|
PT
|
procedure turn
|
GEN
|
|
PTC
|
plan to clear
|
ATC
|
|
PTC
|
positive target
control
|
ATC
|
|
PTCHY
|
patchy
|
NWS
|
|
PTCP
|
participate
|
GEN
|
|
PTLY
|
partly
|
NWS
|
|
PTN
|
portion
|
GEN
|
|
PTN
|
procedure turn
|
ICAO
|
|
PTP
|
pointtopoint
|
ATC
|
|
PTR
|
printer
|
GEN
|
|
PTS
|
polar track
structure
|
ICAO
|
|
PUB
|
public
|
GEN
|
|
PUBL
|
publish
|
GEN
|
|
PUP
|
pickup
|
GEN
|
|
PVA
|
positive vorticity
advection
|
NWS
|
|
PVASI
|
pulsating/steady
visual approach
slope indicator
|
GEN
|
|
PVL
|
prevail
|
GEN
|
|
PVLT
|
prevalent
|
GEN
|
|
PVT
|
private
|
GEN
|
|
PWB
|
pilot weather
briefing
|
GEN
|
|
PWI
|
proximity warning
indicator
|
ATC
|
|
PWINO
|
precipitation
identifier
information not
available (weather
reports only)
|
NWS
|
|
PWR
|
power
|
GEN
|
|
PWRNO
|
power failure
|
GEN
|
|
PWROK
|
power restored
|
GEN
|
|
PY
|
spray
|
METAR
|
