Lights (A320)

These notes cover the exterior and cabin lights on the Airbus A320 and the related annunciators, written as questions and answers. If anything here conflicts with your FCOM, the FCOM wins.

Annunciator light test

When the ANN LT switch is held at TEST, all the flight deck annunciator lights come on and every LCD shows 8s. While this test runs, data cannot move between the ECAM and the navigation displays, and the crew cannot switch between the electronic instrument system and display management computers.

Exterior lights

• The logo lights come on automatically when the main gear struts are compressed or the flaps are extended at least 15 degrees. They go off automatically when neither of those is true.
• The landing lights are designed to work at the maximum operating speed (Vmo), so there is no speed limit if they are left extended.
• The runway turn off lights go off automatically when the landing gear is retracted.
• The strobe lights come on automatically when the main gear strut is not compressed and the STROBE switch is in AUTO.

Cabin signs at high cabin altitude

If the cabin altitude goes above 11,300 feet (plus or minus 350 feet), the cabin lights come on, depending on the CIDS and CAM programming. The NO PORTABLE ELEC DEVICE sign, the FASTEN SEAT BELT sign and the exit signs also come on, no matter where the seat belt and electronic device selector switches are.

ECAM memos

The ECAM shows a memo for the landing lights, the strobe lights, and the seat belt and no portable electronic device signs.

Part of the A320 systems series. See also Airbus Tech. Your FCOM is always the final reference.