Interphone Code 23 is used to contact which cabin?

• A. FWD Cabin (FA1)
• B. Public Address (PA) to main cabin
• C. AFT Cabin (FA2)
• D. Emergency call to all stations

Answer: (C)

Interphone codes select which cabin crew station you reach through the cabin interphone. Code 23 is set to contact the AFT Cabin, specifically FA2. This lets the aft crew communicate directly without involving the forward crew or using the public address system. The forward cabin FA1 would use a different code, the PA to main cabin is handled by the public address system rather than an interphone code, and an emergency call to all stations uses a separate emergency function rather than a targeted interphone code.