MAYDAY vs PAN PAN: ROC-A Emergency Radio Calls Explained
MAYDAY vs PAN PAN: ROC-A Emergency Radio Calls Explained
Emergency and urgency communications are among the most important ROC-A topics. Candidates often hear the terms MAYDAY and PAN PAN, but may not fully understand the difference or how to study them properly.
Quick links: Book your ROC-A exam • Free Study Hub
Quick answer
MAYDAY is associated with distress. PAN PAN is associated with urgency. ROC-A candidates should understand the difference, the priority of these calls, and the basic structure of an emergency or urgency message.
Why this topic matters
Reddit discussions about ROC-A often mention emergency communication as an important area. ISED’s RIC-21 study guide includes distress communications and urgency communications as major sections, so candidates should not skip this topic.
Community source:
https://www.reddit.com/r/flying/comments/zeswuu/roca_exam/
What MAYDAY means
MAYDAY is used for distress situations. Distress communications receive high priority because the situation involves serious and immediate danger requiring assistance. Candidates should understand the seriousness of the word and avoid using it casually.
What PAN PAN means
PAN PAN is used for urgency situations. Urgency is serious and requires attention, but it is different from distress. Candidates should understand when urgency communication is appropriate and why it still receives priority.
What should be included in a priority message?
A practical message may include:
- The priority word
- Identification
- Nature of the situation
- Position if known
- Intentions
- Assistance required
- Any other essential information
The exact wording depends on the scenario, but the goal is always the same: communicate the priority and essential details clearly.
Common mistakes
Mistake 1: Thinking MAYDAY and PAN PAN are interchangeable
They are not interchangeable. The priority level and meaning are different.
Mistake 2: Over-talking during emergency communication
Emergency communication should be clear and concise. Extra words can slow down understanding.
Mistake 3: Memorizing without scenario understanding
Candidates should understand why the words are used and what information matters.
How to study this topic
Use this routine:
- Read the distress section in RIC-21.
- Read the urgency section in RIC-21.
- Write the difference in your own words.
- Practise one MAYDAY-style scenario out loud.
- Practise one PAN PAN-style scenario out loud.
- Review what information must be included.
How phraseology guides help
Transport Canada highlights standard phraseology because it helps reduce misunderstandings and supports efficient communication. NAV CANADA phraseology material can help candidates see how structured aviation communication works in practical examples.
Sources:
- https://tc.canada.ca/en/aviation/publications/aviation-safety-letter/issue-4-2022/phraseology-guides
- https://www.navcanada.ca/en/vfr-phraseology.pdf
Where to prepare
- Free Study Hub: https://rocalicence.com/study-hub
- Book ROC-A exam: https://rocalicence.com/roca
- Official RIC-21: https://ised-isde.canada.ca/site/spectrum-management-telecommunications/en/licences-and-certificates/radiocom-information-circulars-ric/ric-21-study-guide-restricted-operator-certificate-aeronautical-qualification-roc
Final takeaway
MAYDAY and PAN PAN are not just exam terms. They are priority communication tools. ROC-A candidates should know the difference, understand the message structure, and practise saying examples clearly.
General educational guidance only. Always rely on official ISED material for ROC-A examination scope.
