Portugal Trident Airliner UFO Sighting (1976)

On the evening of 30 July 1976, a British Airways Trident 2 (registration C-AVFG) flying from London to Faro at about 29,000 feet reported a sighting that became one of the better-documented airliner cases from Portugal. The account was reconstructed for the Flying Saucer Review in November 1976 by Omar Fowler, who interviewed the three cockpit crew, and later analysed by Martin Shough and Wim van Utrecht. Caelestia reproduction of FSR

The sighting

According to the FSR account, the aircraft was roughly 40 miles south of Lisbon, heading about 195° at 500 knots, at around 2000 GMT. The sun was setting, though the crew described the conditions as daylight. The captain and first officer saw a very bright white light about 30 degrees above the horizon. Below and to one side, dark, cigar- or sausage-shaped objects appeared, with a second and possibly a third following. The first officer said they seemed stationary and that the vapour trail was not a normal contrail. The second officer said the light was far too bright to be a star.

Lisbon Control asked a nearby TriStar to confirm a UFO report. Both the TriStar and the Trident reported the object, and a TAP Air Portugal 727 was also in the area. The controller reportedly became excited and spoke of sending fighters; whether any were scrambled is unknown. The congested radio band delayed the Trident's descent clearance.

Radar and the return flight

After refuelling at Faro, the crew used radar to scan the area where the earlier contact had been made. According to the FSR summary they found a large elliptical echo, several times the size of a tanker, with smaller echoes nearby, though nothing unusual was visible. A NICAP-hosted account quotes the captain saying the crew came within seven miles before the objects vanished from the screen. NICAP report Whether the radar returns were linked to the earlier visual sighting is uncertain.

Witnesses and reporting

The NICAP-hosted account names the captain as Dennis Wood, then 42 and with 20 years at British Airways. It says the crews kept quiet initially, fearing ridicule, and that Wood came forward in 1977 after the story was published in the Natal Daily News (South Africa) on 14 May 1977. The FSR account says the crew reported to London Airport air traffic control and filled in UFO report forms after landing. One passenger at Faro, using binoculars, described something like "crinkled silver paper" within the light. No one on board had a camera.

Explanations and assessment

The FSR authors tested several conventional explanations. Venus was in the area and its position partly matches the captain's sketch, though the sketch places it too high, and Venus may have been lost in skylight near the sun. Mars and Mercury were probably too faint to see in daylight. The sudden appearance of the dark objects at a fixed bearing suggests a mirage off cloud tops, though no nearby land feature explains it. A sunlit high-altitude balloon could account for the bright light. The authors also considered a submarine-launched missile with a backlit contrail, but found the long duration and apparent stillness argued against it. Radar echoes of this kind might be false returns from temperature inversions, though the authors could not confirm that.

The case is documented in a few secondary sources and no official investigation file has been located. Its credibility is contested: the witnesses were trained professionals and the reports are internally consistent, but the record rests on interviews reported decades later, and the authors themselves favour mundane explanations for much of the visual evidence.