The states of emergency are classified as follows:
a) Distress (MAYDAY) - A condition of being threatened by serious and/or imminent danger and
of requiring immediate assistance.
b) Urgency (PAN PAN) - A condition concerning the safety of an aircraft or other vehicle, or of
some person on board or within sight, but does not require immediate assistance.
Jde o situaci na palubě letadla a nutnou asistenci ve vzduchu a na zemi, o nějaké priority na frekvenci zase tak úplně nejde.
