| Acronym | Meaning |
 | LSU | Life Support Umbilical |
| P&M | Phase Modulation (Modulated) |
| FCSS | Fuel Cell Servicing System |
| PSM | Phase Sensitive Modulator |
| PL | Plug |
| OLDB | On-Line Data Bank |
| SWA | Support Work Authorization |
| ICC | Interstate Commerce Commission |
| FCAP | Flight Control Applications Program |
| VIA | By Means Of (By Way Of) |
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