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A 1985 State Department diplomatic cable documenting a formal foreign government intelligence inquiry into multiple UAP overflights, including corroborating commercial aviation radar contact, representing an early official bilateral engagement on unidentified aerial phenomena.
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Official Conclusion
Information characterized as very sketchy; U.S. Embassy denied knowledge of any B-52 or U.S. aircraft in PNG airspace; resolution pending confirmation from USCINCPAC.
Official Description
This document is a U.S. Department of State diplomatic cable from the U.S. Embassy in Port Moresby, Papua New Guinea to USCINCPAC (United States Indo-Pacific Command) at Honolulu, HI on January 28, 1985. The cable reports that the U.S. Embassy to Papua New Guinea received an inquiry from the host nation’s intelligence services regarding reports of high-altitude, high-speed aircraft in Papua New Guinean airspace on the evening of January 24, 1985. The cable refers to a representative of the local intelligence services as “NIO,” or National Intelligence Officer, throughout. The NIO relayed to U.S. diplomatic personnel that residents had been “frightened by overflights, which led to the provincial premier’s calling of a public meeting on the subject.” The NIO also stated there had been “various reports of unidentified aerial phenomena the night of January 24, including fast-moving objects with lights, contrails, and noise.” The NIO assessed these reports as credible based upon the testimony of an Air Niugini pilot who said that their radar had “picked up aircraft flying south to north at high altitude and high speed.” The cable concludes by characterizing the information provided by the NIO as “very sketchy.” It also sought clarification from U.S. INDOPACOM on the presence or absence of U.S. military aircraft within Papua New Guinean airspace on the night in question.
Key Findings
A January 28, 1985 diplomatic cable from the U.S. Embassy in Port Moresby, Papua New Guinea, reporting an inquiry from the PNG National Intelligence Organization (NIO) regarding multiple sightings of high-altitude, high-speed unidentified aerial phenomena over PNG airspace on the evening of January 24, 1985. The Embassy relayed the NIO's report—which included radar contact by a commercial pilot and multiple visual sightings of contrails—and sought confirmation from USCINCPAC and 43rd Strategic Wing that no U.S. military aircraft were operating in PNG airspace that night.
Analyst Notes
The Embassy itself characterized the sighting information as 'very sketchy' and noted that witness sources were unsure of the directions in which aircraft were flying. No shape description was provided and no physical evidence was collected. The sightings involved contrails and noise, consistent with conventional high-altitude aircraft. The U.S. denied any military aircraft presence but no independent verification is documented in this cable. The most credible report is radar contact by a commercial pilot, though only a single airborne radar observation is cited.
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AI analysis by claude-sonnet-4-6 · May 20, 2026
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