What color do precision approach runway edge lights display, and how do they change near the end?

What color do precision approach runway edge lights display, and how do they change near the end?

• A. All amber throughout.
• B. All white, then amber in the last 2,000 feet.
• C. Blue, turning white at the end.
• D. Red and white alternating.

Answer: (B)

Precision approach runway edge lights are white along most of the runway, and in the last 2,000 feet they switch to amber. This change gives a clear cue to pilots that the end of the runway is near, aiding depth perception and situational awareness during the final approach and landing. The other color patterns don’t match standard lighting: blue lights are for taxiways, and red-and-white or amber-only schemes wouldn’t provide the final-end cue in the same way.

Precision approach runway edge lights are white along most of the runway, and in the last 2,000 feet they switch to amber. This change gives a clear cue to pilots that the end of the runway is near, aiding depth perception and situational awareness during the final approach and landing. The other color patterns don’t match standard lighting: blue lights are for taxiways, and red-and-white or amber-only schemes wouldn’t provide the final-end cue in the same way.