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 part-time FSS

PACF

GEN

parent FSS returns control of part-time 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

GEN

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 self-briefing 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

point-to-point

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

ATC

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

GEN

precision approach radar

PAR

GEN

Precision approach terrain chart

PATC

ICAO

precision instrument runway

PIR

GEN

Pre-departure 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

Pre-flight 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

EXEC-1

GEN

President's family is aboard aircraft

EXEC-1F

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

GEN

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