About 5 years ago my seat-mates on a SJU-IAD flight were a Puerto Rican couple. He owned a light twin, but took commercial for long flights.
He had a story (then recent) of a UA flight, chartered by a cruise company, which landed at Isla Verde instead of SJU. One passes over Isla Verde a few miles before SJU on the normal approach.
The 757 landed safely, but the runway was too short to take off with any load.
Things were worse since there were no stairs at Isla Verde tall enough to reach a 757 ... and it was traffic rush hour so it took a long time to drive stairs over from SJU.