Which indicator signals FD to cabin?

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Multiple Choice

Which indicator signals FD to cabin?

The key idea is how the cabin call-light system uses color and steadiness to show who is calling whom. A steady green signal is used to show that the flight deck is calling the cabin crew. The steadiness conveys an ongoing, active request from the flight deck, so cabin crew know to respond and proceed to attend to the flight deck as needed. Other lights are used for different calls or statuses (for example, a flashing or different-colored light would indicate another source or type of call), so they do not indicate the flight deck directly calling the cabin.

The key idea is how the cabin call-light system uses color and steadiness to show who is calling whom. A steady green signal is used to show that the flight deck is calling the cabin crew. The steadiness conveys an ongoing, active request from the flight deck, so cabin crew know to respond and proceed to attend to the flight deck as needed.

Other lights are used for different calls or statuses (for example, a flashing or different-colored light would indicate another source or type of call), so they do not indicate the flight deck directly calling the cabin.

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