| Acronym | Meaning |
| USB | Upper Side Band |
| CY | Calendar Year |
| CTN | Certification TestNetwork |
| HAL/S | High Order Assembly Language/Shuttle |
| EADI | Electronic Attitude Director Indicator |
| DFRF | Dryden Flight Research Facility |
| NPRV | Nitrogen Pressure Relief Valve |
| CSCSAT | Commercial Synchronous Communication Satellite |
| IDA | Interface Display Assembly |
| SGMT | Simulated Greenwich Mean Time |