What is the role of anti-collision lights during approach and landing?

• A. Reduce electrical load during approach.
• B. Provide a visual cue to other traffic to improve conspicuity.
• C. Serve as runway lighting during approach.
• D. Increase conspicuity to other traffic; ensure lights are on during approach and landing as required by regulations and SOP.

Answer: (D)

Anti-collision lights are designed to make the aircraft more conspicuous to other traffic, especially when visibility is critical during approach and landing. The flashing beacons and white strobes stand out against the sky and nearby aircraft, helping other pilots quickly recognize your position and movement to maintain safe separation. Because of this, they should be illuminated during approach and landing as required by regulations and operator SOPs. They’re not meant to light the runway or reduce electrical load; runway lighting is a separate system. In short, their purpose is to increase conspicuity to other traffic, with compliance ensuring they’re on during approach and landing.