What type of light signals that a non-critical system needs attention?

A caution light signals that a non-critical system needs attention, typically indicating that there is a potential issue that could develop into a more serious problem if left unaddressed. This type of light is designed to alert the crew to monitor the situation closely or take corrective action when necessary, without indicating that there is an immediate emergency.

In the context of aircraft systems, these caution lights serve as an important part of the cockpit's visual warning systems, allowing pilots to stay informed about the operational status of various systems without creating alarm for non-critical issues.

Other types of lights have different meanings: emergency lights indicate a critical situation that requires immediate action, a system failure light typically signals a serious malfunction that could affect aircraft safety, and a status light generally provides information about the normal operational state of a system rather than a warning. Therefore, recognizing the function and the urgency communicated by different types of lights is crucial for effective flight operations and safety management.