| Acronym | Meaning |
| H | EPAHigh Efficiency Particle Air (Filter) |
| KCAL | Kilocalorie |
| MELI | Master Equipment List Index |
| CCF | Converter Compressor Facility |
| CI | Configuration Item |
| FDOR | Flight Design Operations Review |
| TDS | Test Data System |
| OMRSD | Operational Maintainability Reporting Systems Document |
| ODR | OutPut Data Redundancy |
| IMDB | Integrated Maintenance Data Base |