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| Avis de résolution | |||
| English thesaurus | |||
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| RA | |||
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| An advisory issued by airborne collision avoidance system ACAS/traffic alert and collision avoidance system TCAS to alert pilots to potential conflicting air traffic and provide them with a suggested flight- path change in the vertical plane to reduce the possibility of collision | |||
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Resolution Advisory : 3 phrases in 1 subject |
| Transport | 3 |