| Acronym | Meaning |
 | BTU | British Thermal Unit |
| TD | Technical Directive |
| HCV | Hydrogen Check Valve |
| PALS | Photo Area And Location SYstem |
| OP | Open |
| OMA | Operations Maintenance Area |
| OMRSD | Operational Maintenance Requirements And Specification |
| EMI | Electromagnetic Interference |
| SBTC | Speed Brake/Thrust Controller |
| OSHA | Occupational Safety And Health Administration |
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