What is the meaning of a PAN PAN call?

A PAN PAN call is used to convey urgent marine information that is not immediately life-threatening but requires the attention of maritime authorities and other vessels. This type of message indicates that there is a situation of urgency that could develop into a more serious condition if not addressed promptly. It is often used for situations like a vessel experiencing engine difficulty, needing assistance while not posing an immediate danger to life, but still requiring necessary action to prevent escalation and ensure safety.

In contrast, other call types serve different purposes. A critical safety alert would indicate an immediate life-threatening situation, which is more serious than what a PAN PAN call addresses. An emergency positioning request would clearly reflect a dire need for urgent response due to a distress situation, while a weather advisory provides information about forecasted weather conditions without indicating urgent needs for action. The PAN PAN call serves as an important communication tool in maritime operations to maintain safety and coordination among vessels.