P

PEX PHIGS Extended X-Windows System
PF Pilot Flying
PFA, Pfa Probability of False Alarm *
pFAST passive Final Approach Spacing Tool
PFD Primary Flight Display
PFD Planned Flight Data (CFMU - CASA)
PFD Probability of Failure Detection
PFE Path Following Error *
PFI Private Finance Initiative
PFL Planned Flight Level
PFLext Probability of Failure/Fault Localisation, external
PFLint Probability of Fault Localisation, internal
PFM Pre-Flight Messages (EW)
PFN Pulse-Forming-Network
PFR Probability of Failure Repair
PGMP Pilot Group on ATCO Manpower Planning
PHA Preliminary Hazard Analysis
PHARE Poland, Hungary Aid for Restructuring of the Economy (European Commission)
PHARE Programme for Harmonised Air Traffic Management and Research in
Eurocontrol * ; Programmed for Harmonised Research in Europe / Programme
de recherche harmonisée de l’Organisation Eurocontrol en matière de gestion de
la circulation aérienne (FR)
PHAROS Plan Handling and Radar Operating System (NL - Military)
PHIDIAS Position Harmonisant et Intégrant des Dialogues Intéractifs (FR) / Harmonizing
and Interactive Dialogue Integrating Position
PHIGS Programmer's Hierarchical Interactive Graphics System
PI Peripheral Interface (CBN - CNG)
PI Procedure Turn to Intercept (ARINC 424 Path Terminator)
PI Performance Indicator