Air Navigation System
| Configuration Control Board
| air navigation system abbr. | |
| avia. Canada | système de navigation aérienne |
| Configuration Control Board abbr. | |
| avia. Canada | Commission de contrôle de la configuration |
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| système de navigation aérienne | |||
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Air Navigation System : 32 phrases in 6 subjects |
| Astronautics | 1 |
| Aviation | 25 |
| Law | 1 |
| Natural sciences | 1 |
| Technology | 1 |
| Transport | 3 |