What indicates that a system is functioning normally in the CRJ cockpit?

A steady green light in the CRJ cockpit indicates that a system is functioning normally. This is a standard signaling method in aircraft systems to convey status and alerts to pilots. A green light generally affirms that the associated system is operational and there are no issues requiring attention. In aviation, visual indicators play a crucial role in situational awareness, and steady green lights provide reassurance that systems are performing as expected.

Other signals typically indicate caution or a malfunction. For example, a flashing blue light may suggest that a system requires pilot input or is in a standby state, which does not signify normal operation. A constant beep is often used for alerts relating to system irregularities or warnings, demanding immediate pilot awareness and response. Lastly, a red display on the Primary Flight Display (PFD) signifies an urgent issue; this warning requires immediate attention from the flight crew, thereby confirming the opposite of normal operation.