What light system indicates the landing gear status in the ERJ-145?

The landing gear status in the ERJ-145 is indicated by static green lights. These lights serve a crucial function by providing the crew with a clear visual indication that the landing gear is fully extended and locked in place. When the landing gear is in the down and locked position, the corresponding indicators remain illuminated in green, signaling to the pilots that it is safe to land.

Static green lights are the standard for such indications in many aircraft because they offer a simple and effective way to communicate critical systems statuses. This clear visual feedback allows pilots to confidently execute landing procedures without ambiguity about gear position.

In contrast, flashing red lights would typically indicate a problem or malfunction, such as a failure to properly extend the landing gear. Yellow caution lights often signify cautionary states, such as a gear that is in transition or has not correctly indicated its status, rather than confirming a safe condition. The option stating that no indicator lights are used is also incorrect since visual indicators are essential for confirming the landing gear status during operations.