What does a red warning light typically signify on the CRJ?

A red warning light on the CRJ signifies a critical system failure that requires immediate attention. This type of alert is designed to draw the flight crew's focus to serious malfunctions that could potentially compromise the safety of the flight, such as engine failure, loss of hydraulic pressure, or other significant system malfunctions. The illumination of a red warning light prompts the crew to take necessary corrective actions, which may include referring to the aircraft’s quick reference handbook (QRH) for procedures related to the specific failure. The urgency of a red light helps ensure that such critical issues are addressed promptly to maintain flight safety.

In contrast, other colors of alert indicators, such as yellow or amber, typically signify less urgent issues or advisories, indicating that the situation may require attention but does not immediately threaten the aircraft's safety.