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OVP OVER PRESSURE
OVP OVER PRESSURE VALVE
OVPRESS OVER PRESSURE
OVRD OVERRIDE
OVSP PROT OVER SPEED PROTECTION
OVSPD OVER SPEED
OXY OXYGEN
P PAPA
DP DIFFERENTIAL PRESSURE
P - ALT PROFILE ALTITUDE
P - CLB PROFILE CLIMB
P - DES PROFILE DESCENT
P - MACH PROFILE MACH
P - SPEED PROFILE SPEED
P / B PUSH BUTTON (SWITCH)
P / BSW PUSH BUTTON SWITCH
P / C PRESSURE CASE
P / N PART NUMBER
P / RST PUSH TO REST
P0 AMBIENT STATIC AIR PRESSURE
PA PASSENGER ADDRESS / PUBLIC ADDRESS
PAM PULSE AMPLITUDE MODULATION
PAMB PRESSURE AMBIENT
PAR PRECISION APPROACH RADAR
PARK PARKING
PAS PATH ATTITUDE SENSOR
PAS PITCH ATTITUDE SENSOR
PAX PASSENGERS
PB BURNER PRESSURE
PB PRESSURE BYPASS
PB PUSH BUTTON (SWITCH)
PBE PROTECTIVE BREATHING EQUIPMENT
PBV PACK BYPASS VALVE
PC / PB PRESSURE COMPRESSOR / PRESSURE BURNER
PC PRESSURE CASE
PCB PRINTED CIRCUIT BOARD
PCE PRE COOLER ENTRANCE
PCM PULSE CODE MODULATION
PCR PRESSURE CASE REGULATED
PCSW PITCH CONTROL WHEEL STEERING
Aircraft Systems - Abbreviations and Acronyms 39
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
PCU POWER CONTROL UNIT
PD PRE COOLER INLET PRESSURE
PDU PILOT DISPLAY UNIT
PDU POWER DRIVE UNIT
PED PEDESTAL
PERF PERFORMANCE
PES CTRL PASSENGER ENTERTAINMENT SYSTEM CONTROLLER
PES PASSENGER ENTERTAINMENT SYSTEM
PF PILOT FLYING
PFD PRIMARY FLIGHT DISPLAY
PFDVC PRESSURE FLOW DIVIDER VALVE CARTRIDGE
PFR POST FLIGHT REPORT
PG PAGE
PH POUNDS PER HOUR
PHC PROBE HEAT COMPUTER
PIPC POWER PLANT ILLUSTRATED PARTS CATALOG
PIREP PILOT REPORTS
PIU PASSENGER INFORMATION UNIT
PLD PROGRAMMABLE LOGIC DEVICE
PMA PERMANENT MAGNETIC ALTERNATOR
PMC POWER MANAGEMENT CONTROL
PMDB PRODUCTION MANAGEMENT DATA BASE
PMG PERMANENT MAGNETIC GENERATOR
PMR PERFORMANCE MAINTENANCE RECORDER
PMUX POWER MULTIPLEXER, POWER PLANT MULTIPLEXER
PN PART NUMBER
PNEU PNEUMATIC
PNF PILOT NON FLYING
PNL PANEL
POB PRESSURE OFF BRAKE
POS POSITION
POSN POSITION
POT POTENTIOMETER
PPH POUNDS PER HOUR
PPI PLANNED POSITION INDICATOR
PPM PULSE POSITION MODULATION
PPOS PRESENT POSITION
PPS POUNDS PER SECOND
PPU POSITION PICK OFF UNIT
PR PRESSURE
PR REGULATED PRESSURE (DOWNSTREAM OF BLEED VALVE)
PRAM PRERECORDED ANNOUNCEMENT MONITOR
PRE FLT PRE FLIGHT
PRECOOL PRE COOLER
PRED PREDICTION
PREREC PRE RECORDED
PRESEL PRESELECTOR
PRESS PRESSURE, PRESSURIZATION
PREV PREVIOUS (PAGE)
PREV PREVISION
PRIM FLIGHT CONTROL PRIMARY COMPUTER (FCPC)
PRIM PRIMARY
PROC T PROCEDURE TURN
PROC PROCEDURE
PROF PROFILE (VERTICAL)
PROG PROGRESS
PROM PROGRAMMABLE READ ONLY MEMORY
PROT PROTECTION
PROTEC PROTECTION
PROX SNSR PROXIMITY SENSOR
40 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
PROX PROXIMITY
PRSOV PRESSURE RAISING AND SHUTOFF VALVE
PRTR PRINTER
PRV PRESSURE REGULATOR VALVE
PS POWER SECTION
PS PUMP SUPPLY PRESSURE
PSB BEARING PRESSURE
PSC PRE SET COURSE
PSCU PROXIMITY SWITCH CONTROL UNIT
PSH PRE SET HEADING
PSI POUNDS PER SQUARE INCH (14.5 PSI = 1 BAR)
PSIA POUNDS PER SQUARE INCH ABSOLUTE
PSID POUNDS PER SQUARE INCH DIFFERENTIAL
PSIG POUNDS PER SQUARE INCH GAUGE
PSIU PASSENGER SERVICE AND INFORMATION UNIT
PSNSRF PRESSURE SENSOR FAILURE
PSR PRIMARY SURVEILLANCE RADAR
PSRM POWER PLANT STRUCTURAL REPAIR MANUAL
PSS PASSENGER SERVICE SYSTEM
PSS PRESSURE SUB SYSTEM (ECU)
PSU PASSENGER SERVICE UNIT
PSW PRESSURE SWITCH
PT POINT
PT TOTAL AIR PRESSURE
PTC POSITIVE TEMPERATURE COEFFICIENT
PTCH PITCH ANGLE
PTCR BODY AXIS PITCH RATE
PTFE TEFLON
PTP PROGRAMMING AND TEST PANEL
PTR PRINTER
PTT PUSH TO TALK
PTU POWER TRANSFER UNIT (HYDRAULIC)
PU POWER UNIT
PUT POWER UP TEST
PW PRATT AND WHITNEY
PWA PRINTED WIRING ASSEMBLY
PWM PULSE WIDTH MODULATOR
PWR SPLY POWER SUPPLY
PWR POWER (ENGINE, ELECTRIC, HYDRAULIC, PNEUMATIC)
Q D QUICK DONNING
Q QUEBEC
QAD RING QUICK ATTACH DETACH RING
QAD QUICK ATTACH DETACH
QAR QUICK ACCESS RECORDER
QDM MAGNETIC DIRECTION TO STATION
QDR TRUE DIRECTION FROM STATION
QEC QUICK ENGINE CHANGE
QFE FIELD ELEVATION ATMOSPHERE PRESSURE
QFF RUNWAY HEADING
QFU RUNWAY HEADING
QNE SEA LEVEL STANDARD ATMOSPHERE PRESSURE (1013.25 HPA)
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