This online glossary provides a comprehensive list of all major aviation abbreviations.
PA |
passenger/public address |
PA/CI |
passenger address / cabin interphone |
PAPI |
precision approach path indicator |
PC |
personal computer |
PCU |
passenger control unit |
PCU |
power control unit |
PDCU |
panel data concentrator unit |
PDOS |
powered door opening system |
PDS |
primary display system |
primary display function |
|
PDU |
power drive unit |
PF |
pilot flying |
PFC |
primary flight computer |
PFCS |
primary flight control system |
PFD |
primary flight display |
PIIC |
passenger in-flight information computer |
PMA |
permanent magnet alternator |
PMAT |
portable access maintenance terminal |
PMG |
permanent magnet generator |
PNEU |
pneumatic |
PNF |
pilot not flying |
POS |
position |
PRAM |
pre-recorded announcement machine |
press |
pressure |
PRSOV |
pressure regulating and shut-off valve |
pri |
primary |
prox |
proximity |
PSA |
power supply assembly |
PSEU |
proximity sensor electronics unit |
PSS |
proximity sensor system |
PSU |
passenger service unit |
ptr |
printer |
PTT |
push-to-talk |
QAR |
quick access recorder |
QFE |
atmospheric pressure at runway threshold |
QNE |
pressure altitude at the landing runway threshold (indicated altitude when altimeter set to 1013.25 mb) |
QNH |
atmospheric pressure at sea level |
RA |
radio amplifier |
RAT |
ram air turbine |
RBI |
relative bearing indicator |
RCC |
remote charge convertor |
rcvr |
receiver |
RF |
radio frequency |
RFU |
radio frequency unit |
RIB |
right inboard |
RLY |
relay |
RMI |
radio magnetic indicator |
ROB |
right outboard |
RT |
receiver-transmitter |
RTO |
rejected take-off |
RTP |
radio tuning panel |
RVR |
runway visual range |