| Acronym | Meaning |
 | SPA | Signal Processor Assembly |
| RAU | Remote Acquisition Unit |
| TAL | Transatlantic Abort Landing |
| PIIN | Procurement Instrument Identification Number |
| PCIL | Pilot-Controlled Instrument Landing |
| FCH | L Flight Control Hydraulics Laboratory |
| BMS | Background Measurement Satellite |
| TNL | Tunnel |
| EOW | Energy Over Weight |
| EPDB | Electrical Power Distribution Box |
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