| Acronym | Meaning |
| N204 | Nitrogen Tetroxide |
| FRSI | Felt Reusable Surface Insulation |
| TGA | Thermal Gravimetric Analysis |
| PCA | Pneumatic Control Assembly |
| LACIP | Large Area Crop Inventory Program |
| VFM | View Finder Monitor |
| DIAGN | Diagnose |
| CPDS | Crew Procedures Documentation System |
| DER | Drawing Error Report |
| PMI | Preventive Maintenance Inspection |