Avionics Magazine presents the third edition of our comprehensive Aerospace Acronym Guide. Since we started compiling the list in 2002, the number of acronyms and abbreviations has grown by 660 entries, from 2,306 to 2,966.
Though it is not an exhaustive list, we trust it will serve you well.
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P2FEP PETAL-II front-end processor
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P3 I preplanned product improvements
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PA passenger address
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PA power amplifier
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PABX private automatic branch exchange
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PAC path attenuation compensation
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PACIS passenger address and communication interphone system
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PAD packet assembler-disassembler
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PAL programmable array logic
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PAM pulse amplitude modulation
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PAMRI peripheral adapter module replacement item
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PANS-OPS procedures for air navigation services-aircraft operations
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PAPD precise and accurate positioning device
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PAR precision approach radar
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PAT process action team
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PATS portable avionics test solution
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PAU passenger address unit
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PAVES programmable audio video entertainment system
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PAWES performance assessment and workload evaluation
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PAX passenger
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PBD place bearing/distance (waypoint)
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PBID post burn-in data
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PBX public/private branch exchange
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PC printed circuit
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PC personal computer
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PCA physical configuration audit
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P-Code GPS precision code
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PCB printed circuit board
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PCC pilot controller communication
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PCD panoramic cockpit display
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PCI peripheral component interface (32-bit local bus)
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PCI protocol control information
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PCM pulse code modulation
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PCMIA personal computer memory card interface association
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PCO protocol converter unit
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PCU program coordination office
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PCU passenger control unit
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PCU personal control unit
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PCU power control unit
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PD profile descent
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PDA personal digital assistant
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PDB performance data base
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PDC pre-departure clearance
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PDCU panel data concentrator unit
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PDD package design document
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PDDI product definition data interface
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PDF primary display function
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PDL program design language
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PDM predefined controller text message
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PDM project development manager
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P-DME precision DME
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PDN public data network
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PDOP position dilution of precision
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PDR preliminary design review
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PDS persistent data storage
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PDS primary display system
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PDU protocol data unit
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PE precision engagement
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PECT peer entity contact table
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PED portable electronic device
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PER packed encoding rule
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PERT program evaluation and review technique
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PETAL preliminary Eurcontrol test of air/ground data link
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P/F poll/final
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PF power factor
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PF pilot flying
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pFAST passive final approach spacing tool
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PFC primary flight computer
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PFCS primary flight control system
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PFD primary flight display
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PHARE Program for Harmonized ATM research in Europe (Eurocontrol)
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PHI Petroleum Helicopters Inc.
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PHY physical
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PI parameter identifier
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PIA performance, integrity and availability
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PICS protocol implementation conformance statements
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PID parameter identifier
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PID pilot information display
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PID primitive identifier
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PID process ID
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PIM programmable infosec module
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PIP product improvement program
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PIREP pilot report
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P&L profit and loss
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PL parameter length
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PL project leader
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PLA power lever angle
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PLB personal locator beacon
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PLBTs personal locator beacon and voice transceivers
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PM program manager
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PM phase modulation
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PMA parts manufacturer approval
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PMA parts manufacturer authority
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PMA permanent magnet alternator
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PMAT portable maintenance access terminal
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PMC provisional memory cover
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PMC PCI mezzanine card
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PMG permanent magnet generator
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PMOS p-type metal oxide semiconductor
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PMP project/program management plan
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PMS performance management system
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PN pseudo noise
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PNCS performance navigation computer system
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PND primary navigation display
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PNF pilot not flying
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PNR point of no return
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PO part of
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POA plain old ACARS
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POC point of contact
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POC proof of concept
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POCC project operations control center
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POH pilot's operating handbook
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POM program objective memorandum
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POP point of presence
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POR Pacific Ocean region
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POSIX portable operating system interface
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POTS plain old telephone system/service
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PPA production preparation agreement
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PPDU physical layer protocol data unit
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PPI planned position indicator
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PPL processor-to-processor link
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PPM pulse position modulation
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PPM pages per minute
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PPM parts per million
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PPP point-to-point protocol
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PPS packets per second
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PPS pulse per second
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PPS precise positioning service
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PRAIM predictive RAIM
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PRF pulse repetition frequency
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PRI primary rate interface
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PRM precision runway monitor
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PROM programmable ROM
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PRN pseudo random noise
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P-RNAV precision area navigation
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PRS public regulated service
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PRSOV pressure regulating and shutoff valve
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P/RST press to reset
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PS power supply
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PSA PS assembly
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PSD port sharing device
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PSDN packet switched data network
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PSE packet-switching exchange
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PSEU proximity sensor electronic unit
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PSL projected service life
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PSL/PSA problem statement language/ problem statement analyzer
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PSM power supply modules
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PSN packet switching network
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PSPL preferred standard parts list
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PSR primary surveillance radar
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PSS proximity sensor system
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PSSA preliminary system safety assessment
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PSTN public switched telephone network
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PSU passenger service unit
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PT plane talk
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PT total pressure
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PTAN precision terrain aided navigation
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PTD performance test domain
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PTI packet type identifier
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PTM peripheral transition module (I/O interface for SBC)
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PTR production test requirements
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PTS problem tracking system
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PTSD production test specification document
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PTT push to talk
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PTU power transfer unit
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PV parameter value
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PV photovoltaic
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PVC permanent virtual circuit
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PVD plan view display
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PVT position, velocity, time
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PWM pulse-width modulation
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PWR Power
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PXI PCI extensions for instrumentation
