A call between the cabin and flight deck is signaled with which lights and chimes?

A call between the cabin and flight deck is signaled with which lights and chimes?

• A. Flashing Green Light and HI Chime
• B. Flashing Green Light and HI-LO Chime
• C. Flashing Green Light and LO Chime
• D. Flashing Green Light and LO-Hi Chime

Answer: (B)

The signal combines a visual cue with an audible one. When there’s a cabin-to-flight-deck call, a flashing green light appears and a two-tone HI-LO chime sounds. The flashing green draws attention even in a busy cockpit or cabin, while the HI-LO chime pattern uniquely identifies the call direction and prompts the flight crew to respond. This dual indication helps ensure the crew notices and acknowledges the cabin call quickly, whereas other chime patterns or a single tone would indicate different types of messages or directions.

The signal combines a visual cue with an audible one. When there’s a cabin-to-flight-deck call, a flashing green light appears and a two-tone HI-LO chime sounds. The flashing green draws attention even in a busy cockpit or cabin, while the HI-LO chime pattern uniquely identifies the call direction and prompts the flight crew to respond. This dual indication helps ensure the crew notices and acknowledges the cabin call quickly, whereas other chime patterns or a single tone would indicate different types of messages or directions.