NDT  Non-Destructive Test
OAMP  On Aircraft Maintenance Planning
OAT  Outside Air Temperature
OJT  On The Job Training
OP  Operational Check
OVHT  Overheat
OXY  Oxygen
P/B  Pushbutton
P/N  Part Number
PA  Passenger Address
PCU  Power Control Unit
PFD  Primary Flight Display
PMA  Parts Manufacturer Approval
（ Authority）
PMA  Permanent Magnet Alternator
PMG  Permanent Magnet Generator
PSIA  Pounds Per Square Inch Absolute
PSID  Pounds Per Square Inch Differential
PSIG  Pounds Per Square Inch Gage
Pt  Total Pressure
PTT  Push To Test Or Push To Talk
PTU  Power Transfer Unit
QAD  Quick-Attach-Detach

QAR  Quick Access Recorder
QC  Quality Control
QFE  Field Elevation Pressure
QNH  Sea  Level  Standard  Atmosphere 
Pressure
QTY  Quantity
RA  Radio Altimeter, Radio Altitude

RCVR ReceiverRH Right HandROM Read Only MemoryRPM Revolution Per MinuteRTO Rejected Take OffRVDT Rotary Variable
TransducerS/N Serial Number
Differential
SAT Static Air TemperatureSEC Spoiler Elevator Computer
SEL Selected CallCAL SFCC Slat Flap Control Computer
SID Standard Instrument Departure
SRU Shop Replaceable Unit快速存取記錄器 質量控制 場壓 修正海壓
數量，量 無線電高度表，無線電高度 讀寫存儲器 沖壓空氣渦輪 接收機 右手邊，右側 只讀存儲器 轉/分鐘 中斷起飛 旋轉可變差動傳感器 序號 靜空溫 擾流板升降舵計算機 選擇呼叫
襟縫翼操縱計算機 標準儀表離港 車間可更換組件