What condition does the gear warning light indicate?

The gear warning light serves as an important safety indicator for the aircraft’s landing gear system. When this warning light is illuminated, it specifically indicates that the landing gear is not in the selected position, which typically means that the landing gear is either not extended or is in a state that does not meet the aircraft's operational requirements for a safe landing.

This warning is crucial because it provides immediate feedback to the pilot that, prior to landing or in certain flight conditions, the gear must be verified to ensure it is properly positioned for landing. This is essential for a successful landing and overall flight safety, as attempting to land without the gear in the correct position could lead to catastrophic failure of the landing attempt.

In contrast, the other options reflect conditions that are either not indicative of an issue or are not specifically represented by the gear warning light. For instance, a statement about the landing gear being safely locked would not trigger a warning light and indicates a state that is desirable, while transitioning or uncertainty about the gear position does not accurately describe the specific warning condition represented by the illuminated gear warning light.