Necklace in the sky

Many years ago:
I'm lying on the carpeted floor of a hotel room in Los Angeles. It is night and I have just realised that I am in middle of the flight path to LAX. Navigational lights stretch in three parallel streaks. The lights curve in from the right, at equal distances, one minute apart, and pass on both sides of my vantage point, all through the night, like an infinite necklace of blinking pearls.