It happened on April 1, 1993 on iHeartmedia's KGB-FM in San Diego. As told by the L-A Times, "San Diegans rushed to a small airport in the morning, hoping to witness an event very few get to see in real life: a space shuttle landing. Because of a systems malfunction at Edwards Air Force Base, space shuttle Discovery was being diverted to touch down at San Diego’s Montgomery Field. The elaborate hoax was orchestrated by KGB-FM, which aired an interview with a faux NASA spokesperson to confirm Discovery was en route. The ruse was believed to bring more than 1,000 people to the area, tying up traffic for hours. The airport manager had to explain to hundreds of angry would-be onlookers that they’d been had."
(Photo City of San Diego)