What indicates that a non-LED flashlight is ready for use?

A non-LED flashlight being secured with a red solid light indicates that it is ready for use. The solid red light signifies that the flashlight is in a state of readiness, which allows crew members to quickly confirm its availability and functionality during any emergency. It's important for safety equipment like flashlights to have clear signals that enable quick assessment, especially in low visibility conditions.

The other options do not indicate readiness; a green light might imply a different status, while being "present but not secured" suggests that the flashlight may not be in a position to be utilized immediately, which can lead to confusion in emergency situations. An intermittent flash does not provide a reliable indication of readiness and may imply a malfunction or low battery, making it untrustworthy during critical moments. Thus, the presence of a solid red light is a clear and effective indication that the flashlight is ready when it is secured.