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Case · C-116

Air France 3532, 1994: a dark red disc over Coulommiers and a radar track

Airspace over Coulommiers, Seine-et-Marne, Île-de-France · France · Jan 28, 1994

In flight Pilots Radar

Unexplained

What happened
On January 28, 1994, at 13:14 according to GEIPAN, the crew of an Air France Airbus A320 flying from Nice to London noticed, over the Coulommiers area, a phenomenon that the chief steward, the first to report it, took for a weather balloon; the captain and the copilot then described a brown or dark red disc that changed shape before disappearing suddenly. Reims control had no traffic in the sector. At the same moment the Cinq-Mars-la-Pile radar recorded for 50 seconds an unidentified track that crossed the flight's route and disappeared together with the object. The witnesses made a report to the gendarmerie and to SEPRA only in 1997; GEIPAN classifies the case D1, but notes that the radar track does not match the described object well and that the chief steward's testimony is missing.
Proposed explanation
In 2012 GEIPAN, with Météo-France, ruled out a sounding balloon (which had passed an hour earlier) and still considers possible, but unprovable, an unknown atmospheric optical phenomenon or a flexible object, such as a balloon envelope, carried by the wind.
Official investigation
GEIPAN (CNES); SEPRA; National Gendarmerie; French air defense (radar recording)
Words of the document
cas inexpliqué moyennement consistant avec un caractère d'étrangeté marqué

Official documents

  1. « AF3532 » [AERO AFR] COULOMMIERS (77) 28.01.1994 – scheda del caso con verbali e documenti · GEIPAN (CNES) · Jun 16, 2026

Sources

  1. Futura Sciences, “5 histoires extraordinaires et non résolues d'ovnis: l'étrange observation de l'équipage du vol Nice-Londres” (press)
  2. Patrick Gross, study of the testimonies on flight AF 3532 (estimated dimensions and sources) (analysis)

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