During a normal call from the flight deck on the CRJ 900, what do you see and hear?

• A. See: Solid Red; Hear: One Hi/Lo
• B. See: Blinking Red; Hear: Silent
• C. See: Solid Green; Hear: One Hi/Lo
• D. See: Solid Red; Hear: Two Hi/Lo

Answer: (A)

When the flight deck calls the cabin on the CRJ 900, you’ll notice a solid red indicator and hear a single high/low tone. The steady red light is the clear sign that an inbound flight-deck call is active and requires attention, while the single tone alerts you to the incoming verbal communication without signaling an emergency. This combination differentiates a normal flight-deck call from other status indicators (like blinking lights or multiple tones that would point to a different type of call or alert). So, seeing solid red and hearing one tone means you’ve got a normal interphone call from the flight deck and you should acknowledge and respond accordingly.