What elements to include in a distress call and what phraseology should be used?

• A. State unit identity, location, number of people involved, and weather conditions; use Hello for emergencies.
• B. State unit identity, nature of emergency, location, number of people involved, and last known position; use I require assistance in urgent terms; 'Mayday' for life-threatening emergencies and 'Pan-Pan' for urgent but non-life-threatening situations.
• C. State only location and number of people; no phraseology.
• D. State unit identity, nature of emergency, location, number of people involved, help required, and last known position; use Mayday for life-threatening emergencies and Pan-Pan for urgent but non-life-threatening situations.

Answer: (D)

Understanding how to structure a distress call is about delivering a complete, actionable snapshot of the situation in a concise way. The essential components are to state who you are (unit identity), what has happened (nature of the emergency), where you are (location and last known position), how many people are involved, and what you need (help required). Along with that, using the established phraseology ensures responders recognize the urgency and respond appropriately. Mayday is reserved for life‑threatening emergencies, while Pan-Pan signals an urgent but non‑life‑threatening situation.

The best choice includes all of these pieces: who you are, the type of emergency, where you are, how many people are involved, what assistance you need, and your last known position, plus the correct use of Mayday for life‑threatening cases and Pan-Pan for urgent but non‑life‑threatening cases. This combination gives SAR teams the critical information they need to decide on the right response and to locate you quickly.

Other options fall short because they omit one or more of these elements or use nonstandard phrasing. For example, one option drops the explicit request for the type of help or the last known position or uses informal phrasing that isn’t part of standard distress communications. The other partly covers details but doesn’t present the complete, standard set of information or correct phraseology. The comprehensive, correctly phrased call is the one that ensures maximum clarity and fastest, appropriate assistance.