| Abbreviation | Definition |
|---|---|
| FRL | Fuselage Reference Line |
| FRM | Fleet Resource Management |
| FRMT | FoRMaT |
| FROST | Food Reserve On Space Trips |
| FRP | Fiberglass Reinforced Plastic |
| FRP | Fuel Rail Pressure |
| FRP | Fuselage Reference Plane |
| FRR | Flight Readiness Review |
| FRRI | Flight Readiness Review Item |
| FRRID | Flight Readiness Review Item Description |
| FRSI | Felt Reusable Surface Insulation |
| FRSI | Flexible Reusable Surface Insulation |
| FRT | Flight Readiness Test |
| FRT | Flight Readiness Training |
| FRT | Frequency Response Test |
| FRTM | Functional Requirements Traceability Matrix |
| FRZR | FReeZeR |
| FS | Fail to Sync |
| FS | Fail-Safe |
| FS | Fault Summary |