| Acronym | Meaning |
 | CAPPPI | Citizen Ambassador Program Of People To People International |
| ACAS | Advisory Committee For Atmospheric Sciences |
| SOPAC | Scripps Orbit And Permanent Array Center |
| INU | Inertial Navigation Unit |
| NEC | Nippon Machines |
| EPI | Environmental Policy Institute |
| SMS | Synchronous Meteorological Satellite |
| ETE | Estimated Time En Route |
| NRDC | National Research Development Corporation |
| (AA3) | Accident Analysis Computer Program |
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