| Acronym | Meaning |
| ECCB | Engineering Change Control Board |
| EMSS | Electromagnetic Servoactuator SYstem |
| K-SLN | KSC Spacelab Notice |
| EL | Elevate |
| SWAD | Subdivision Of Work Authorization Document |
| SVB | Shuttle Vehicle Booster |
| OFM | Original Equipment Manufacturer |
| ESA | Engineering SuPPort Assembly |
| LES | Launch Equipment Shop |
| OM | Orbiter Main Engine |