📢 This glossary was created to be a dynamic version of the Pilot/Controller Glossary published by the FAA. Because the FAA now maintains its own dynamic version of the Pilot/Controller Glossary, this version is no longer updated.
| Term: |
MAYDAY |
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| Meaning: | The international radiotelephony distress signal. When repeated three times, it indicates imminent and grave danger and that immediate assistance is requested. |
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| Previous Term: | MAXIMUM AUTHORIZED ALTITUDE |
| Next Term: | MCA |