Mexico City UFO Airplane Interaction 1975

Location. Mexico City, Mexico
Date: May 1975 Time: evening
Two weeks after a dramatic UFO sighting from his plane—a sighting confirmed on the radar screens at Mexico City airport—-young pilot, four black-suited Scandinavian looking men in a black limousine pursued Santos Montiel down the freeway. After forcing him to the side of the road, they warned him not to discuss his sighting, the pilot was on his way to do a television interview, a month later one of the strangers reappeared and threatened him again while he was on his way to a hotel to talk to the prominent UFO investigator Allen Hynek. He described the MIBs as tall and strangely white, and said he never saw them blink.

HC addendum
Source: David Pratt, Visitors from the twilight zone Type: E
Comments this is an account of the original encounter:
On May 3 1975, Carlos Antonio de los Santos Montiel was flying to Mexico City in his Piper PA-24 when his plane started to shake for no apparent reason. When he looked to his right he was astonished to see a dark gray disc-shaped object, about 10 or 12 feet in diameter, just beyond the wing tip. On his left he spotted a similar object pacing his aircraft. But neither of these was nearly so unsettling as the sight of the third, which was moving at him head on. De Los Santos yanked a lever which should have lowered the landing gear—he had hoped to touch the UFO with his wheels—but the mechanism failed to respond. But he still succeeded in touching the object, in fact, much to the pilot’s chagrin; the UFO scraped the underpart of the fuselage and caused the plane to jolt. By now, and beside himself with fear, De los Santos discovered that the controls would not operate. Theoretically at least the craft was out of control but it continued flying relatively smoothly at 120 mph. That didn’t make him feel any better—he was weeping as he described the encounter over the radio to the control tower at the Mexico City airport. The UFOs no longer visible, the pilot asked for and received permission to land and was relieve to find the plane’s instrumentation working normally again. Carlos de los Santos was given a medical examination and pronounced fit, free of physical or psychological damage from the experience.