The Manises UFO Incident took place on the night of November 11, 1979, when the crew of TAE Flight 297 reported unexplained lights during a flight from Palma de Mallorca toward the Canary Islands and diverted to Manises Airport near Valencia. The aircraft, a Super Caravelle carrying passengers, was commanded by Francisco Javier Lerdo de Tejada. According to Spanish press coverage and later case summaries, the crew saw lights that appeared to approach or pace the aircraft, could not obtain a satisfactory traffic identification, and chose an emergency landing rather than continue into uncertainty.

The case quickly became one of Spain's best-known UFO incidents because it involved a commercial airliner, air-traffic coordination, ground witnesses, and a military scramble. After the airliner landed, Spanish authorities sent a Mirage F1 from Los Llanos Air Base, piloted by Fernando Camara, to investigate reported lights. Camara later described pursuing or attempting to identify luminous targets without a clear resolution. That response turned Manises into a national aviation-security story rather than a casual sighting.

It also created a layered record: civilian crew report, airport observations, military response, and later defense-file declassification. Those layers explain why the incident still carries weight in Spanish UFO history. They do not, by themselves, establish the nature of the lights.

The case has a substantial skeptical reconstruction. Research associated with Vicente-Juan Ballester Olmos and other Spanish investigators argued that the original lights seen by the airliner were likely distant flares or emissions from the Escombreras refinery near Cartagena, made unusual by atmospheric conditions such as temperature inversion. Other lights reported from the ground or pursued by the fighter were suggested to be stars, planets, ships, or military/electronic activity misread under stress. That explanation is not accepted by every UFO researcher, but it is important because it addresses the multi-stage character of the case rather than dismissing all witnesses.

The strongest part of Manises is operational seriousness. A pilot diverted a passenger aircraft, and the military responded.

The weakest part is identification. Distance over water, night lighting, atmospheric refraction, and heightened concern can make several unrelated stimuli appear to be one coordinated event. A refinery flare seen from far away can look startling if weather bends or magnifies it; a fighter pilot then searching for an expected anomaly may notice other lights in the same broad narrative frame. None of that requires witnesses to be dishonest.

It does require caution before joining all observations into one object.

The case also belongs beside other aviation-linked UAP events such as the O'Hare Airport UFO and modern military range cases, where air-safety decisions create records even when the object remains unresolved. Manises is especially useful because it shows both sides of the evidence problem. The diversion and scramble are documented enough to give the event historical weight. The proposed ordinary explanations are detailed enough to challenge claims of exotic performance.

What is documented is the diversion, public reporting, and military response.

What is claimed is that an unknown object pursued or threatened the aircraft.

What is disputed is whether all reported lights had a common source and whether the refinery/atmospheric explanation accounts for the full sequence.

Probed read: Manises is a strong aviation-history case because people made real operational decisions in response to perceived unknowns. It is weaker as evidence for extraordinary craft because the best skeptical reconstruction offers plausible, if contested, ordinary sources.

What would move the assessment: Full radar data, radio transcripts, weather profiles, refinery flare logs, Mirage instrumentation, and synchronized witness timings would decide whether the event was a chain of misidentifications or a truly unresolved airspace encounter.