|
Definition
|
Contraction
|
Usage
|
|
Pacific
|
PAC
|
NWS
|
|
Pacific Standard Time
|
PST
|
GEN
|
|
Pacific Standard Time (time group only)
|
P
|
NWS
|
|
packed snow on runway
|
PSR
|
NWS
|
|
panhandle
|
PNHDL
|
NWS
|
|
parachute
|
PRCHT
|
GEN
|
|
parachute jumping activities
|
PAJA
|
GEN
|
|
parachute jumping exercise
|
PJE
|
ICAO
|
|
paragraph
|
PARA
|
GEN
|
|
parallel
|
PARL
|
ICAO
|
|
parent FSS assumes control of parttime
FSS
|
PACF
|
GEN
|
|
parent FSS returns control of parttime
FSS
|
PRCF
|
GEN
|
|
parenthesis
|
PAREN
|
GEN
|
|
parking
|
PRKG
|
ICAO
|
|
partial
|
PR
|
METAR
|
|
participate
|
PTCP
|
GEN
|
|
partly
|
PTLY
|
NWS
|
|
Pass to air defense radar
|
PADRA
|
ATC
|
|
passage
|
PSG
|
NWS
|
|
passenger
|
PAX
|
ICAO
|
|
passenger
|
PSGR
|
GEN
|
|
passenger service
|
PS
|
GEN
|
|
passing
|
PSG
|
NWS
|
|
patches
|
BC
|
METAR
|
|
patches of shallow fog not deeper than
two meters
|
MIFG
|
NWS
|
|
patchy
|
PTCHY
|
NWS
|
|
pattern
|
PAT
|
GEN
|
|
pavement classification number
|
PCN
|
ICAO
|
|
pay period (number)
|
PP
|
GEN
|
|
Peak wind (weather reports only)
|
PK WND
|
NWS
|
|
penetrate or penetration
|
PENT
|
ATC
|
|
peninsula
|
PEN
|
NWS
|
|
perforator
|
PERF
|
GEN
|
|
performance
|
PER
|
ICAO
|
|
period
|
PD
|
GEN
|
|
peripheral communications
|
PERCOM
|
GEN
|
|
permanent
|
PERM
|
ICAO
|
|
permanent change of station
|
PCS
|
GEN
|
|
permission
|
PMSN
|
GEN
|
|
permit
|
PMT
|
GEN
|
|
persist
|
PRST
|
GEN
|
|
personal
|
PSNAL
|
GEN
|
|
personnel
|
PSNL
|
GEN
|
|
personnel and equipment working
|
PAEW
|
GEN
|
|
persons on board
|
POB
|
ICAO
|
|
photo reconnaissance
|
PR
|
GEN
|
|
physical
|
PHYS
|
GEN
|
|
Pickup
|
PUP
|
GEN
|
|
pierced steel planking
|
PSP
|
ICAO
|
|
pilot balloon observation
|
PIBAL
|
NWS
|
|
pilot check
|
PCK
|
ATC
|
|
pilot controlled lighting
|
PCL
|
GEN
|
|
Pilot controlled lighting
|
PCL
|
ICAO
|
|
pilot controller glossary
|
P/CG
|
GEN
|
|
pilot failed to activate VFR/DVFR flight
plan
|
AVFPNO
|
ATC
|
|
pilot in command
|
PIC
|
GEN
|
|
pilot instructor training
|
PIT
|
GEN
|
|
pilot requests forecast
|
PIRFC
|
GEN
|
|
pilot selfbriefing terminal
|
PSBT
|
GEN
|
|
pilot to forecaster service
|
PFSV
|
GEN
|
|
pilot weather briefing
|
PWB
|
GEN
|
|
pilot weather report
|
PIREP
|
GEN
|
|
pilots automatic telephone weather
answering service
|
PATWAS
|
GEN
|
|
place of birth
|
PLOB
|
GEN
|
|
plan position indicator
|
PPI
|
ICAO
|
|
plan to clear
|
PTC
|
ATC
|
|
please
|
PLS
|
GEN
|
|
plow (snow)
|
PLW
|
NWS
|
|
plus
|
PS
|
NWS
|
|
point of no return
|
PNR
|
ATC
|
|
pointtopoint
|
PTP
|
ATC
|
|
polar (air mass)
|
P
|
NWS
|
|
polar track structure
|
PTS
|
ICAO
|
|
portion
|
PTN
|
GEN
|
|
position
|
PSN
|
GEN
|
|
Position adjustable range reference
orientation transponder
|
PARROT
|
ATC
|
|
Position Dilution of Precision
|
PDOP
|
ATC
|
|
position relief briefing observed
|
PRBO
|
ATC
|
|
position report
|
PSNRP
|
ATC
|
|
position subject to return of incumbent
|
PSRI
|
GEN
|
|
position subject to rotating shifts
|
PSRS
|
GEN
|
|
positive
|
POS
|
GEN
|
|
positive control area
|
PCA
|
GEN
|
|
positive target control
|
PTC
|
ATC
|
|
positive vorticity advection
|
PVA
|
NWS
|
|
possible
|
POSS
|
ICAO
|
|
possible
|
PSBL
|
GEN
|
|
post meridiem
|
PM
|
GEN
|
|
post office
|
PO
|
GEN
|
|
pounds (weight)
|
LB
|
GEN
|
|
power
|
PWR
|
GEN
|
|
power failure
|
PWRNO
|
GEN
|
|
power restored
|
PWROK
|
GEN
|
|
practice low approach
|
PLA
|
ICAO
|
|
precaution
|
PRCTN
|
GEN
|
|
precede
|
PRECD
|
GEN
|
|
precipitation
|
PCPN
|
NWS
|
|
precipitation identifier information not
available (weather reports only)
|
PWINO
|
NWS
|
|
precision approach
|
PA
|
GEN
|
|
precision approach lighting system
|
PALS
|
ICAO
|
|
precision approach path indicator
|
PAPI
|
ICAO
|
|
precision approach radar
|
PAR
|
ICAO
|
|
Precision approach terrain chart
|
PATC
|
ICAO
|
|
precision instrument runway
|
PIR
|
GEN
|
|
Predeparture clearance
|
PDC
|
ICAO
|
|
predominant
|
PDMT
|
NWS
|
|
predominate
|
PDMT
|
NWS
|
|
preferential arrival/departure route
(Stage A)
|
PDAR
|
GEN
|
|
preferential departure route (Stage A)
|
PDR
|
GEN
|
|
preferred
|
PREF
|
ATC
|
|
Preflight information bulletin
|
PIB
|
ICAO
|
|
prepare
|
PRP
|
GEN
|
|
present
|
PRSNT
|
NWS
|
|
present address unknown
|
PAU
|
GEN
|
|
present altitude
|
PALT
|
ATC
|
|
present indications are
|
PRIND
|
GEN
|
|
present latitude
|
PLAT
|
ATC
|
|
present level
|
PLVL
|
ICAO
|
|
present longitude
|
PLONG
|
ATC
|
|
present position
|
PPSN
|
ATC
|
|
President on board civil aircraft
|
EXEC1
|
GEN
|
|
President’s family is aboard aircraft
|
EXEC1F
|
GEN
|
|
pressure
|
PRES
|
GEN
|
|
pressure altitude
|
PA
|
GEN
|
|
pressure falling rapidly
|
PRESFR
|
NWS
|
|
pressure jump (weather reports only)
|
PRJMP
|
NWS
|
|
pressure rising rapidly
|
PRESRR
|
NWS
|
|
prevail
|
PVL
|
GEN
|
|
prevalent
|
PVLT
|
GEN
|
|
previous
|
PREV
|
GEN
|
|
primary
|
PRI
|
ICAO
|
|
primary
|
PRIM
|
GEN
|
|
primary radar
|
PRIRA
|
GEN
|
|
Primary surveillance radar
|
PSR
|
ICAO
|
|
principal
|
PRIN
|
GEN
|
|
printer
|
PTR
|
GEN
|
|
prior notice required
|
PN
|
ICAO
|
|
prior permission required
|
PPR
|
ICAO
|
|
priority delayed weather
|
PDW
|
NWS
|
|
private
|
PVT
|
GEN
|
|
private line telephone
|
PLF
|
GEN
|
|
private line teletypewriter
|
PLT
|
GEN
|
|
privately owned aircraft
|
POA
|
GEN
|
|
privately owned vehicle
|
POV
|
GEN
|
|
probability
|
PRBLTY
|
NWS
|
|
probability
|
PROB
|
ICAO
|
|
probability 40 percent
|
PROB40
|
METAR
|
|
probable
|
PBL
|
NWS
|
|
probable
|
PRBL
|
GEN
|
|
procedure
|
PROC
|
GEN
|
|
procedure signal
|
PROSIG
|
GEN
|
|
procedure turn
|
PT
|
GEN
|
|
procedure turn
|
PTN
|
ICAO
|
|
procedures for air navigation services
|
PANS
|
ICAO
|
|
proceed
|
PCD
|
ICAO
|
|
proceed
|
PROCD
|
GEN
|
|
proceed directly on course
|
PDDC
|
ATC
|
|
proceed or proceeding on course
|
POC
|
ATC
|
|
prognosis or prognostic
|
PROG
|
NWS
|
|
progress
|
PROG
|
GEN
|
|
prohibited area
|
P
|
ICAO
|
|
propagation
|
PROPA
|
GEN
|
|
propeller
|
PROP
|
GEN
|
|
propose
|
PPS
|
GEN
|
|
proposed boundary crossing time
|
PBCT
|
GEN
|
|
provide
|
PRVD
|
GEN
|
|
provisional
|
PROV
|
ICAO
|
|
proximity warning indicator
|
PWI
|
ATC
|
|
pseudo random noise
|
PRN
|
GEN
|
|
public
|
PUB
|
GEN
|
|
public buildings service
|
PBS
|
GEN
|
|
publish
|
PUBL
|
GEN
|
|
Puget Sound
|
PGTSND
|
NWS
|
|
pulsating visual approach slope
indicators
|
PLASI
|
ATC
|
|
pulsating/steady visual approach slope
indicator
|
PVASI
|
GEN
|
|
purchase order
|
PO
|
GEN
|
