| A/C |
Air Conditioning |
| AD's |
Airworthiness Directives |
| ADF |
Automatic Direction Finder |
| AH |
Artificial Horizon |
| A&P |
Airframe & Powerplant |
| AP |
Audio Panel |
| AP |
Autopilot |
| CDI |
Course Deviation Indicator |
| CHT |
Cylinder Head Temperature |
| COM |
Communications |
| C/R |
Counter Rotating |
| CT |
Carburetor Temperature |
| DF |
Direction Finder |
| DG |
Directional Gyro |
| DME |
Distance Measuring Equipment |
| EFIS |
Electronic Flight Information System |
| EGT |
Exhaust Gas Temperature |
| ELT |
Emergency Locator Transmitter |
| F/D |
Flight Director |
| FGP |
Full Gyro Panel |
| FWF |
Firewall Forward |
| GNS |
Global Navigation System |
| GPS |
Global Positioning System |
| G/S |
Glide Slope |
| GSP |
Ground Service Plug |
| HC |
Heavy Case |
| HF |
High Frequency |
| HP |
Heated Pitot |
| HP |
Horsepower |
| HSI |
Horizontal Situation Indicator |
| HSI |
Hot Section Inspection |
| IFR |
Instrument Flight Rated |
| ILS |
Instrument Landing System |
| IRAN |
Inspect/Repair as Necessary |
| ITC |
Investment Tax Credit |
| LE |
Left Engine |
| LMB |
Light Marker Beacon |
| LOC |
Localizer |
| LORAN |
Long Range Navigation |
| LR |
Long Range |
| LRT |
Long Range (fuel) Tanks |
| MB |
Marker Beacon |
| MDH |
Major Damage History |
| MP |
Manifold Pressure |
| MSP |
Maintenance Service Plan |
| NDH |
No Damage History |
| NM |
Nautical Miles |
| NAV |
Navigation Radio Receiver |
| OAT |
Outside Air Temperature |
| OH |
Overhaul |
| PET |
Piper Electric Trim |
| PC |
Positive Control |
| PBH |
Power by the Hour |
| RB |
Rotating Beacon |
| RC |
Rate of Climb |
| RDF |
Radio Direction Finder |
| RE |
Right Engine |
| RG |
Retractable Gear |
| RMI |
Radio Magnetic Indicator |
| RNAV |
Area Navigation |
| SB's |
Service Bulletins |
| SCMOH |
Since Chrome Major Overhaul |
| SFRM |
Since Factory Remanufacture |
| SHS |
Since Hot Section |
| SMOH |
Since Major Overhaul |
| SOH |
Since Overhaul |
| S/N |
Serial Number |
| SPOH |
Since Prop Overhaul |
| STOH |
Since Tob Overhaul |
| STOL |
Short Takeoff and Landing |
| TBO |
Time Between Overhaul |
| TT |
Total Time |
| TTAE |
Total Time Airframe and Engine |
| TTSN |
Total Time Since New |
| XPDR |
Transponder |
| VLF |
Very Low Frequency |
| VOR |
VHF Omni Range |