Which button is associated with testing the lavatory system on the Forward FA panel?

Which button is associated with testing the lavatory system on the Forward FA panel?

• A. LAV Smoke Test
• B. Cabin Temperature
• C. PSU Test/Reset
• D. Master Caution

Answer: (A)

Testing the lavatory system relies on its dedicated control on the Forward FA panel. The button labeled LAV Smoke Test is specifically designed to initiate a self-test of the lavatory smoke detector and its warning circuitry, so crew can confirm the lavatory system is capable of detecting smoke and signaling alerts properly. This focused test ensures the lavatory safety system is functioning without needing an actual smoke condition. Other controls on the panel serve different systems: Cabin Temperature checks the environmental control for the cabin, PSU Test/Reset tests the power supply to the passenger service units, and Master Caution is a general alert for various faults. They do not perform a lavatory system test.

Testing the lavatory system relies on its dedicated control on the Forward FA panel. The button labeled LAV Smoke Test is specifically designed to initiate a self-test of the lavatory smoke detector and its warning circuitry, so crew can confirm the lavatory system is capable of detecting smoke and signaling alerts properly. This focused test ensures the lavatory safety system is functioning without needing an actual smoke condition.

Other controls on the panel serve different systems: Cabin Temperature checks the environmental control for the cabin, PSU Test/Reset tests the power supply to the passenger service units, and Master Caution is a general alert for various faults. They do not perform a lavatory system test.