In the summer of 1985, a French Air Charter International 727-200 made a visual approach into Eilat airport, Israel.
ATC exchanges (published in Time Magazine) went like this:
Eilat TWR: "Air Charter xxx, where are you?"
Air Charter xxx: "We're on the apron already!"
Eilat TWR: "Not on mine!"
Before the crew could figure out the problem, armed men surrounded the aircraft. They had actually landed in Aqaba, Jordan, 4nm North-East of Eilat. Time reported that the captain was taken away to answer a few questions, but returned a short while later, accompanied by a friendly airport director, who invited him to come back for tea or coffee sometime!
The 727 then made the short hop to nearby Eilat (which incidentally has the same QFU). Red faces all round methinks...