| Acronym | Meaning |
| LL | Low Level |
| DPP | E)eve@opment-Right |
| BRG | Bearing |
| R | Radius |
| PASS | Primary Avionics Software System |
| FED | Flight Events Demonstration |
| CSAS | ComPuterized Status Accounting System |
| MECR | Maintenance Engineering Change Request |
| IOQE | Input/Output C)ueue Element |
| SRN | Software Release Notice |