OSV—Operational Service Volume

PA—Precision Approach

PAR—Precision Approach Radar

PCG—Positive Course Guidance

PDC—Pre-Departure Clearance

PDR—Preferential Departure Route

PF—Pilot Flying

PFD—Primary Flight Display

PI—Principal Inspector

PIC—Pilot In Command

PIREP—Pilot Weather Report

PKI—Public/Private Key Technology

PM—Pilot Monitoring

POH—Pilot’s Operating Handbook

POI—Principle Operations Inspector

PRM—Precision Runway Monitor

P-RNAV—European Precision RNAV

PT—Procedure Turn

PTP—Point-To-Point