During what scenario might the term 'SOUR' be used?

The term 'SOUR' is typically used in a technical context to indicate that equipment is not functioning properly or is showing signs of malfunction or failure. When the equipment indicates issues, using the term 'SOUR' serves as a concise and clear way to communicate that there is a problem, which requires immediate attention or troubleshooting. This communication is crucial in operational settings where timely and accurate reporting of equipment status is essential for mission success and safety.

In contrast, other scenarios do not pertain to indicating that something is malfunctioning. For instance, when equipment is functioning normally or when a mission is aborted, different terminology would be applied that aligns with those specific operational contexts. Additionally, the term is not applicable in situations related to enemy contact, which would involve assessing tactical engagements rather than equipment status.