Why do some planes have flashing lights within the plane cabin?

Why do some planes have flashing lights within the plane cabin? - Black Multicolored Control Panel Lot

I took a plane from Hong Kong to Yangon (flight number: Cathay Dragon KA 250; Airbus A321 (twin-jet) according to FlightAware) and I noticed some flashing lights in the plane cabin throughout the flight. Video: https://youtu.be/3ccvmWNxTu0

Picture with and without the light:

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Pretty much all segments lighted up at some point during the flight. I couldn't detect any lighting pattern.

Why do some planes have such flashing lights within the plane cabin? It lasted the entire flight.



Best Answer

I am pretty sure the effect you describe is due to equipment malfunction.

Cabin lights are usually dimmed during night take-off and night landing, and on long-haul flights to allow passengers to sleep comfortably. This is normal behaviour. However, flashing lights are not.




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Why do some planes have blinking lights?

Anti-collision lights, also known as Beacon lights or Strobe lights are a set of lights required on every aircraft to improve visibility to others, as well as collision avoidance measures by warning other pilots. Historically they have used incandescent bulbs, but recently Light-emitting diodes have been used.

Do all airplanes have blinking lights?

Every modern airliner is equipped with a comprehensive exterior illumination system that comprises of lights that blink, and lights that are constantly on. The lights that flash are designed to attract attention, whereas the lights that are steadily on are mostly used for illumination purposes.

Do airplanes have blinking lights on their wings?

Most commercial airplanes have a green light on one of their wings and a red light on the opposite wing. The red light is located on the airplane's left wing, whereas the green light is located on the airplane's right wing. They two lights will flash simultaneously to increase the airplane's visibility.

What does a red flashing light mean on a plane?

Strobe lights are bright, flashers on the edge of the wings. They aid the airplane's visibility at night and are the brightest lights on an airplane. The rotating beacon is a flashing red light on the aircraft, turned ON to indicate that the engine is running.



LIGHTS on Airplanes explained by \




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Images: Marina Hinic, Shamia Casiano, Tim Gouw, Athena