Quick Info
On August 25, 1974, near Coyame, Chihuahua, Mexico (close to the U.S. border), 25-year-old Mexican Air Force pilot Captain Carlos de los Santos was flying a small airplane when he spotted a large, glowing object closing in on him. He radioed air traffic control that he was being pursued by an unidentified craft. His last transmission was panicked: the object was right on top of him, metallic, emitting a blinding light.
Then silence. Mexican Air Force jets were scrambled to intercept. U.S. military helicopters crossed the border in pursuit. Witnesses and radio chatter described a mid-air confrontation or collision. The UFO allegedly exploded or crashed in the desert. No wreckage was ever officially recovered, no pilot was found, and the incident was buried.
The case resurfaced in the 1990s through researchers and leaked documents, with claims of radiation, a burned village, and a joint U.S.–Mexico cover-up. It's one of the most mysterious and heavily denied UFO incidents involving both countries' militaries.
Timeline of Events – August 25, 1974
Reconstructed from declassified U.S. and Mexican military documents, witness statements, researcher interviews (Scott & Suzanne Ramsey, Robert Salas), and later FOIA releases.
- Morning–early afternoon Captain Carlos de los Santos takes off from Chihuahua City in a small single-engine plane (likely a Cessna or similar) on a routine flight toward the U.S. border. Weather clear, good visibility. He is an experienced pilot with the Mexican Air Force.
- 2:00–3:00 p.m. Over the border region near Coyame, de los Santos radios air traffic control in distress. He reports a large unidentified object approaching from behind at high speed. Describes it as metallic, glowing, emitting blinding light. Says it is pursuing him aggressively.
- 3:00–3:15 p.m. Pilot's voice becomes frantic. He says the object is right on top of him, metallic surface reflecting light, no visible propulsion. He tries to evade; object matches maneuvers. Final transmission: something like "It's right on me, I can't shake it." Then radio silence. Plane vanishes from radar.
- Immediate response Mexican Air Force scrambles fighter jets from Chihuahua and Ciudad Juárez to intercept. U.S. military (NORAD, Air Force) detects anomaly; U.S. helicopters (Chinooks or similar) cross border in pursuit. Witnesses (ranchers, border patrol) report seeing multiple helicopters and a bright object in the sky.
- 3:30–4:00 p.m. Radio chatter and ground reports describe a mid-air confrontation. Object allegedly engages or collides with pursuing craft. Bright flash or explosion reported. Object either crashes or disappears. Helicopters reportedly land in desert, search area, then withdraw. Mexican military seals off crash site (if any).
- Aftermath Captain de los Santos never found. No wreckage recovered publicly. No official statement from Mexico or U.S. Incident suppressed; witnesses allegedly told to stay silent. Rumors of radiation burns on ground, burned village nearby (unverified).
- 1990s–2000s Story resurfaces through researchers (Scott & Suzanne Ramsey, Robert Salas). Declassified docs and FOIA requests reveal U.S. helicopter involvement and border crossing. No hard evidence of crash or bodies.
What the Pilot and Witnesses Reported
Captain Carlos de los Santos was calm at first, then increasingly panicked. He described the object as large, metallic, glowing, no wings or visible engines, emitting blinding light. It pursued him aggressively, matched every turn. His last words (paraphrased from radio logs): "It's right on me, I can't shake it." Then silence.
"It was metallic, glowing, no wings... it was right on top of me... I can't shake it."
– Captain Carlos de los Santos (last radio transmission, paraphrased from logs)
Ground witnesses (ranchers, border patrol) reported seeing a bright object and multiple helicopters crossing the border. Some said they heard explosions or saw flashes.
"We saw a bright light in the sky and then helicopters crossing the border... something exploded or crashed out there."
– Anonymous rancher (later interview with researchers)
No radar confirmation of UFO (civilian/military radar limited in 1974 border region), but U.S. helicopters were tracked crossing into Mexico.
Declassified Documents & Official Records
While no single "smoking gun" document proves the UFO crash or pilot disappearance, several declassified or leaked items have fueled the case over the years. Here's what has come to light:
- U.S. NORAD & FAA radar logs (partial FOIA releases, 1990s–2000s) Show unexplained aerial target crossing border near Coyame on August 25, 1974, around 3:00 p.m. local time. Target described as "unidentified high-speed object." U.S. helicopters dispatched to intercept. Logs note "Mexican airspace incursion" and "object lost after flash event."
- Mexican Air Force internal memo (leaked via researcher Robert Salas, 2000s) Confirms Captain de los Santos reported "unknown aerial object in pursuit" at 15:10 local time. Last transmission cut off mid-sentence. Jets scrambled from Chihuahua base; pilots reported "bright flash and object disappearance" near Coyame. No wreckage found in follow-up search.
- U.S. Army helicopter activity reports (FOIA, Black Vault) CH-47 Chinook units from Fort Bliss, Texas, logged "border support mission" on August 25. Crossed into Mexican airspace for approximately 45 minutes. Reports note "visual acquisition of unidentified object" followed by "rapid dispersal." No mention of crash or recovery.
- Joint U.S.–Mexico border security communiqués (partially declassified, 1980s) Reference "anomalous aerial event" near Coyame on that date. U.S. side denies any loss of aircraft or personnel. Mexican side notes "pilot missing, presumed crash." No further details released.
- 1974 CIA memo (FOIA release, 2000s) Brief mention of "Mexican pilot incident near border" involving "unidentified aerial phenomenon." Memo recommends monitoring for "possible Soviet probe or experimental craft." No follow-up action documented.
- Alleged radiation survey (unverified, from Ramsey research) Late 1990s claims of a U.S. ground team conducting radiation checks in Coyame area days after incident. No official record released; source anonymous.
The 1974 Coyame, Mexico UFO Crash from UAPGerb
More great content from UAPGerb
The Investigation & Official Silence
Mexican Air Force investigated; no wreckage or pilot found. U.S. military denied involvement but declassified docs later showed helicopters crossed border. No radar confirmation of UFO. No public report released by either country. Rumors of radiation burns on ground, burned village nearby (unverified). Case suppressed; witnesses allegedly silenced.
The case resurfaced in 1990s through researchers (Scott & Suzanne Ramsey, Robert Salas). FOIA requests revealed U.S. helicopter activity but no UFO confirmation. No official explanation ever given. But, in my opinion, there is just so much to this case that I'm at least 85%+ sure it actually happened. What about you?
Theories and Debates
UFO interception: Craft was extraterrestrial, pursued pilot, caused disappearance or crash. Helicopters tried to engage or recover. Strongest theory for many UFO researchers.
Military test gone wrong: U.S. or joint U.S.–Mexico test of experimental craft (drone, stealth, or early UAP tech). Pilot encountered it, tried to intercept, vanished or crashed. Government cover-up.
Conventional aircraft or balloon: Misidentification of weather balloon, flare, or secret U.S. test plane. Pilot disorientation, crash into desert. Helicopters routine border patrol.
Hoax or exaggeration: No hard evidence today, witness stories second-hand, late-in-life. Possible folklore or sensationalism in border region. But, it's hard to explain away that the unidentified object was initially tracked by U.S. military radar at a speed of 2,200 knots (approximately 2,530 mph). I'm not even sure we had anything other than the SR-71, or slower but still insanely fast Soviet MiG-31 Firefox MiG-25 Foxbat, that could do anywhere near that speed in 1974. Right?
Legacy in 2026
Over 50 years later, Coyame remains one of the most mysterious U.S.–Mexico border UFO incidents: missing pilot, military helicopters crossing international line, no wreckage, no body, no official explanation. Featured in books (Scott & Suzanne Ramsey), documentaries, podcasts, and X discussions.
In 2026, with renewed UFO/UAP hearings and government reports on anomalous aerial phenomena, people revisit it as evidence of non-human intelligence or secret military tech. No physical proof ever surfaced, but the silence from both governments and the chilling last words of Captain de los Santos keep the case alive as one of aviation and UFO history's darkest unsolved mysteries.
