Case file · Sighting

Air France flight 3532

The crew of a Nice–London airliner saw a huge brownish-red disc near Paris, and military radar reportedly recorded a matching track.

1994 CE · 48.82, 3.08 · status: unexplained

The account

On 28 January 1994 Captain Jean-Charles Duboc and his co-pilot saw an object they first took for a weather balloon, then estimated as very large, some 45–50 km away near Coulommiers, which changed shape and vanished. The Taverny air defence centre said it had a radar track that crossed the plane's path. GEIPAN files it as unexplained (class D) and the 1999 COMETA report featured it.

The sceptical view

Size and distance estimates of a lone object are unreliable, and a large stratospheric balloon or a cloud phenomenon has been suggested; the radar link is disputed.

The researched reading

An airline crew saw a huge disc and military radar recorded a track nearby. A balloon or cloud may explain the sight, but the radar keeps it among the stronger unexplained French cases.

ExplanationWeightWhy
Genuinely anomalous35%The Taverny air defence centre reported a 50-second radar track at the right place and time, which a balloon would hardly produce in that way, and GEIPAN files the case as unexplained; but the link between track and sighting is disputed.
Something known, misidentified30%The crew first took the object for a weather balloon; a large stratospheric balloon seen in profile can look like a dark disc, and estimating size from a distance of tens of kilometres is unreliable.
A known natural phenomenon14%A dense lens-shaped cloud changing shape and fading would match the description of the object dissolving rather than flying off.
Secret human technology10%A military balloon or test is possible near Paris, though nothing was identified.
A poorly understood natural phenomenon6%A rare atmospheric effect is possible but unspecified.
Perception, memory or mind4%Three crew members saw it, so misperception alone is weak.
A hoax or fabrication1%Reported through official channels by an experienced crew.

Official position: GEIPAN classes the case as unexplained; it featured in the 1999 COMETA report.

Connections in the atlas

Sources

  1. Futura Sciences (French)
  2. Patrick Gross case file
  3. Lenticular cloud (Wikipedia)
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