Module 7 - Urgency & Safety Calls
Pan-Pan vs Mayday: choosing urgency or distress
What you will learn
Escalate urgency to distress when required and cancel a multi-station urgency message when action is no longer needed.
PAN-PAN is not a permanent classification. Keep the danger under review, upgrade without delay, and close an all-stations urgency message properly when it is resolved.
The distinction is the current threshold, not how the event started. Use Mayday when grave and imminent danger requires immediate assistance. Use PAN-PAN for serious concern needing urgent help or advice below that threshold. An urgency call should never prevent a later Mayday.
If a vessel transmitted an urgency message to more than one station and the action requested is no longer needed, ITU procedure requires a cancellation. It uses PAN-PAN three times, ALL STATIONS three times, THIS IS, the vessel name three times, call sign or other identification, MMSI if the initial announcement used DSC, and PLEASE CANCEL URGENCY MESSAGE OF followed by the UTC time.
Cancellation is not the same as simply going quiet. It tells every monitoring station which earlier message is closed. Continue any watch or follow-up directed by the coordinating authority and record the relevant time and outcome.
Close the loop after recovery
A yacht sent an all-stations urgency announcement at 1420 UTC after losing steering. The emergency tiller now works and HM Coastguard agrees that no further action is required.
1. Confirm resolution
Make sure the requested action is no longer needed and follow the coordinating authority's instructions.
2. Anchor the cancellation
Give vessel identity, call sign, MMSI where applicable and the original message time: 1420 UTC.
3. Maintain the watch
Do not switch off merely because cancellation was sent; listen for any reply or instruction.
Sense check: A listener should be able to match the cancellation to one specific earlier urgency message.
Common mistake or limitation
- Staying with PAN-PAN after the event becomes grave and imminent.
- Cancelling by saying only that everything is fine, without identity and the original UTC time.
- Treating radio silence as proof that every station knows the urgency action has ended.
Recap
- Upgrade to Mayday when the distress threshold is reached.
- Cancel multi-station urgency traffic when the requested action is no longer needed.
- Identity and original UTC time tie the cancellation to the correct message.
Optional quick check
Section 4 of 9
What uniquely links a multi-station urgency cancellation to the earlier message?
Sources and factual review
Reviewed 20 August 2026 - Compass Revision editorial review.
Practice choosing radio priority
The urgency and safety module adds spoken structure, working-channel procedure, medical calls and escalation decisions.