When passing 10,000 feet on descent, the lights should be turned to dim. (True or False)

When passing 10,000 feet on descent, the lights should be turned to dim. (True or False)

• A. True
• B. False
• C. Dim when requested
• D. Depends on flight

Answer: (B)

Lighting changes are driven by SOPs and the needs of the flight, not by a fixed altitude. There isn’t a universal rule that you must dim the lights specifically when crossing 10,000 feet on descent. The crew adjusts cabin lighting based on instructions from the flight deck, ambient light, safety considerations, and passenger comfort. So the statement isn’t universally true—the appropriate action is to dim only when requested or per the operator’s policy, not automatically at that altitude.

Lighting changes are driven by SOPs and the needs of the flight, not by a fixed altitude. There isn’t a universal rule that you must dim the lights specifically when crossing 10,000 feet on descent. The crew adjusts cabin lighting based on instructions from the flight deck, ambient light, safety considerations, and passenger comfort. So the statement isn’t universally true—the appropriate action is to dim only when requested or per the operator’s policy, not automatically at that altitude.