| Acronym | Meaning |
| LSE | Life Support Equipment |
| R | Rear |
| LOB | Line Of Balance |
| SIE | Shuttle Interface Equipment Services |
| ECP | Engineering Change Proposal |
| IWBS | Indirect Work Breakdown Structure |
| BCU | Bus Control Unit |
| DEIS | Design Engineering Inspection Simulation |
| TCE | Thermal Canister Experiment |
| H/O | Handover |