How does a “low approach” happen? You would think that with today’s modern technology that every square inch of every major airport in the U.S. would be GPS’ed and in the computer of every plane, no? Aren’t there sensors that would alert the pilot he was too low?
*Warning speculation by an amateur*
I see a few possibilities
*Faulty altimeter reading high (pilot thought he was on correct glide path)
*Pilot thought he was supposed to land on the yellow chevrons
*Pilot counting on headwind, getting a lull instead.
Likelyhood I have no Idea what I am talking about, high.