| Acronym | Meaning |
| FCA | Forward Controller Assembly |
| PIV | Peak Inverse Voltage |
| MSS | Mechanical Support Systems |
| FOM | R Flight Operations Management Room |
| CVAS | Configuration Verification Accounting System |
| ND | NASA Document |
| M+R | Maintenance And Repair |
| MCPS | Major Cost Proposal System |
| PWBS | Program Work Breakdown Structure |
| RSI | Reusable Surface Insulation |