Do Official Files Hide a Sao Tome UFO Case?

Introduction

The available evidence does not support the existence of a hidden or overlooked official UFO file for São Tomé and Príncipe. Searches of publicly accessible government records, aviation documentation, declassified intelligence collections and international aviation resources do not reveal a documented national investigation into an unidentified aerial phenomenon. Instead, the most common problems are false leads, geographical confusion and the mistaken assumption that any aviation or declassified document mentioning the country is automatically related to UFOs.[cia.gov]cia.govTake a Peek Into Our "X-FilesTake a Peek Into Our "X-Files" - CIAJanuary 21, 2016…Published: January 21, 2016

This distinction matters because official aviation records, accident investigations and declassified archives are valuable historical sources only when they can be linked to a specific event, date, witness or investigation. For São Tomé and Príncipe, that chain of evidence has not been established.

Which authorities would hold official records?

Any credible official record of an unusual aerial event would most likely originate from civil aviation rather than from a dedicated UFO office, because no publicly identifiable São Toméan government body has been responsible for investigating UFO reports.

The institutions most likely to possess relevant documentation include:

Importantly, these organisations investigate aviation safety, not extraterrestrial claims. If pilots report an unidentified object that creates a flight hazard, the primary concern is determining whether it was another aircraft, weather, debris, balloons, birds, equipment malfunction or another safety issue.

No publicly available accident investigation published by these authorities has been identified as involving an unexplained UFO event in São Tomé and Príncipe.[ICAO]icao.intSafety AIASafety AIA…

Why declassified searches can produce misleading results

Searching large intelligence archives frequently creates the impression that governments secretly documented UFO activity in almost every country. In practice, search results require careful interpretation.

The CIA’s released UFO collections primarily concern Cold War intelligence work, reports received from many regions of the world and internal discussions about unidentified aerial reports. The presence of a country’s name in a document does not necessarily mean an incident occurred there or that the country’s authorities investigated one.[CIA]cia.govTake a Peek Into Our "X-FilesTake a Peek Into Our "X-Files" - CIAJanuary 21, 2016…Published: January 21, 2016

Several common sources of confusion appear when researching São Tomé and Príncipe.

Country-name references. Declassified collections sometimes mention São Tomé simply as a geographic location, shipping reference or geopolitical point in unrelated intelligence reporting.

Index entries without cases. Some archives include country names in catalogues or finding aids but provide no corresponding UFO investigation.

Optical character recognition errors. Older scanned documents often contain imperfect text recognition, producing search hits that disappear when the original document is examined.

Database aggregation. Modern searchable datasets may automatically associate countries with incomplete records, even when the underlying report contains little or no verifiable information.

For this reason, every apparent “official file” should be checked against the original document rather than relying on search summaries or database labels alone.[CIA]cia.govTake a Peek Into Our "X-FilesTake a Peek Into Our "X-Files" - CIAJanuary 21, 2016…Published: January 21, 2016

The difference between missing aircraft and UFO reports

One recurring misconception is that searches for aircraft disappearances or aviation accidents around São Tomé somehow reveal hidden UFO incidents.

In reality, aviation accident investigations follow internationally standardised procedures established under ICAO Annex 13. Their objective is identifying safety causes and preventing future accidents, not evaluating paranormal explanations.[ICAO]icao.intDocuments…

For example, searches relating to missing aircraft over the Gulf of Guinea or wider Atlantic often return:

These investigations may involve radar, flight paths and witness statements, but none should automatically be interpreted as UFO evidence.

A well-known illustration from the wider Atlantic is the extensive multinational search for Air France Flight AF447. The investigation relied on oceanography, flight data, Bayesian search modelling and wreckage recovery rather than speculation about unidentified aerial phenomena. Although geographically distant from São Tomé’s own documented aviation record, it demonstrates how aviation authorities treat unexplained disappearances through evidence-based investigation.[arXiv]arxiv.orgSearch for the Wreckage of Air France Flight AF 447May 19, 2014…Published: May 19, 2014

The largest false lead: confusing São Tomé with Brazil

Perhaps the most persistent error involves confusing São Tomé and Príncipe with São Thomé das Letras, a town in the Brazilian state of Minas Gerais that has become famous in UFO folklore.

Internet searches for “São Tomé UFO” often prioritise Brazilian stories involving alleged landings, luminous objects and paranormal traditions. Those accounts concern Brazil and have no documented connection to the African island nation.

This confusion becomes even more significant because Brazil genuinely possesses extensive official aviation and military UFO archives. Brazilian Air Force records, later transferred to the National Archives, include reports from radar operators, pilots and military personnel concerning unexplained aerial observations. These are authentic Brazilian government records, but they should not be attributed to São Tomé and Príncipe merely because of the similarity in place names.[Reddit]reddit.comDisclosure from Brazilian Air Force (FAB) sent to the National Archives (AN) with evidencesOctober 20, 2023…Published: October 20, 2023

Separating these two locations is essential for maintaining an accurate national chronology.

What official evidence actually exists?

After reviewing publicly accessible institutional sources, several conclusions emerge.

There is no identified declassified government file establishing an official São Toméan UFO investigation.

There is no publicly available aviation accident report in which investigators concluded that an unidentified aerial phenomenon played a role.

There is no documented programme comparable to the historical military UFO investigations conducted in countries such as the United States, France or Brazil.

Instead, the available institutional evidence is characterised by absence rather than concealment. That absence should not be interpreted as proof that unusual aerial observations never occurred. Rather, it indicates that no verifiable official record has yet entered the accessible historical archive.[cia.gov]cia.govTake a Peek Into Our "X-FilesTake a Peek Into Our "X-Files" - CIAJanuary 21, 2016…Published: January 21, 2016

How to judge future claims

If a new claim emerges that an official São Toméan UFO file has been discovered, several questions provide a useful credibility test:

Until evidence meeting these standards appears, the most evidence-based assessment remains straightforward: publicly accessible official records from São Tomé and Príncipe do not currently demonstrate the existence of a documented national UFO case, while many apparent leads dissolve under closer examination into ordinary aviation documentation, database artefacts or geographical confusion.[cia.gov]cia.govTake a Peek Into Our "X-FilesTake a Peek Into Our "X-Files" - CIAJanuary 21, 2016…Published: January 21, 2016

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Endnotes

1. Source: cia.gov
Title: Take a Peek Into Our “X-Files”
Link:https://www.cia.gov/stories/story/take-a-peek-into-our-x-files/

Published: January 21, 2016

2. Source: icao.int
Title: Safety AIA
Link:https://www.icao.int/safety/AIG/AIA

3. Source: cia.gov
Title: cias role in the study of ufos 1947 1990
Link:https://www.cia.gov/resources/csi/studies-in-intelligence/studies-in-intelligence-1997/cias-role-in-the-study-of-ufos-1947-1990/

4. Source: icao.int
Link:https://www.icao.int/safety/AIG/documents

5. Source: icao.int
Title: Accident Investigation Section (AIG)
Link:https://www.icao.int/accident-investigation-section-aig

6. Source: arxiv.org
Link:https://arxiv.org/abs/1405.4720

Published: May 19, 2014

7. Source: reddit.com
Link:https://www.reddit.com/r/UFOs/comments/17cn7b8

Published: October 20, 2023

8. Source: icao.int
Link:https://www.icao.int/news/icao-strengthens-global-framework-accident-investigations-addresses-conflicts-interest

Published: March 27, 2026

9. Source: archives.gov
Link:https://www.archives.gov/research/topics/uaps/textual-and-microfilm

Published: April 24, 2025

10. Source: archives.gov
Title: Project BLUE BOOK
Link:https://www.archives.gov/research/military/air-force/ufos

11. Source: archives.gov
Title: Do Records Show Proof of UFOs? | National Archives
Link:https://www.archives.gov/news/articles/do-records-show-proof-of-ufos

12. Source: cia.gov
Title: How To Investigate a Flying Saucer
Link:https://www.cia.gov/stories/story/how-to-investigate-a-flying-saucer/

13. Source: cia.gov
Title: AFRIC A REVIEW | CIA FOIA (foia.cia.gov)
Link:https://www.cia.gov/readingroom/document/cia-rdp87t00289r000100390001-6

14. Source: cia.gov
Title: FACTBOO K | CIA FOIA (foia.cia.gov)
Link:https://www.cia.gov/readingroom/document/cia-rdp08-00534r000100130001-8

15. Source: cia.gov
Title: DC D CASE (DELETED)
Link:https://www.cia.gov/readingroom/document/0000015235

16. Source: icao.int
Title: Annex 13
Link:https://www.icao.int/sites/default/files/postalhistory/annex_13_aircraft_accident_and_incident_investigation.htm

17. Source: icao.int
Title: guidance material
Link:https://www.icao.int/safety-management/guidance-material

18. Source: aviation-safety.net
Link:https://aviation-safety.net/database/countries/S9

19. Source: cia.gov
Link:https://www.cia.gov/readingroom/document/cia-rdp81r00560r000100070028-5

20. Source: cia.gov
Title: SCIENTIST S REFUTE CLAIMS OF ‘UFO’ SIGHTINGS | CIA FOIA (foia.cia.gov)
Link:https://www.cia.gov/readingroom/document/cia-rdp81r00560r000100010014-6

21. Source: cia.gov
Link:https://www.cia.gov/readingroom/document/0005516065

22. Source: cia.gov
Title: AI R FORCE REQUEST TO DECLASSIFY CIA UFO REPORT | CIA FOIA (foia.cia.gov)
Link:https://www.cia.gov/readingroom/document/0000015430

23. Source: cia.gov
Link:https://www.cia.gov/readingroom/document/0000015408

24. Source: cia.gov
Title: FLYIN G SAUCERS | CIA FOIA (foia.cia.gov)
Link:https://www.cia.gov/readingroom/document/0000015343

25. Source: nsib.gov.ng
Title: MO U; FGN AND SAO TOME – Nigerian Safety Investigation Bureau
Link:https://nsib.gov.ng/mou-fgn-and-sao-tome/

26. Source: nationalarchives.gov.uk
Title: UF O reports
Link:https://www.nationalarchives.gov.uk/explore-the-collection/explore-by-time-period/postwar/ufo-reports/

Additional References

27. Source: youtube.com
Title: Use ASRS to Report UAP and UFO Encounters
Link:https://www.youtube.com/watch?v=Tu2pT86vhjE

28. Source: youtube.com
Title: Strange High-Altitude Encounters Get Stranger
Link:https://www.youtube.com/watch?v=S7RQecHwGAM

29. Source: youtube.com
Title: Breakdown of the Pentagon UFO videos with Mick West
Link:https://www.youtube.com/watch?v=Le7Fqbsrrm8

30. Source: youtube.com
Title: A Model for Investigating UAP Events – Episode 182
Link:https://www.youtube.com/watch?v=vxBN2t8zzg8

31. Source: transport.ec.europa.eu
Link:https://transport.ec.europa.eu/transport-modes/air/aviation-safety/accident-investigation_en

32. Source: brazilianufoarchives.com
Title: people on a plane spotted a ufo between varginha and sao tome das letras mg 1998
Link:https://brazilianufoarchives.com/2020/06/19/people-on-a-plane-spotted-a-ufo-between-varginha-and-sao-tome-das-letras-mg-1998/

33. Source: aim.asecna.aero
Link:https://aim.asecna.aero/html/eAIP/FR-_00GEN-3.3-01-fr-FR.html

34. Source: youtube.com
Link:https://www.youtube.com/watch?v=tNiJz-U0mcs

35. Source: skybrary.aero
Link:https://skybrary.aero/bookshelf/final-report-an72-ur-ckc-sao-tome-sao-tome-principe-29-july-2017
Published: july 2017

36. Source: secretsdeclassified.af.mil
Link:https://www.secretsdeclassified.af.mil/Home/Top-Flight-Documents/Unidentified-Flying-Objects/