GEIPAN Case 1994-01-01345 — « AF3532 » [AERO AFR] COULOMMIERS (77) 28.01.1994

Brief

On 28 January 1994 at 13:14, the crew of Air France flight AF3532 — an Airbus A320-11 operating the Nice-London route — observed an unidentified phenomenon to the left of the aircraft while overflying Coulommiers, Seine-et-Marne; the sighting was initiated by the chief steward, who was in the cockpit and alerted the captain. Ground radar confirmed the presence of a target, which then vanished instantaneously. GEIPAN assigned the case classification D1, denoting a documented phenomenon that resists conventional explanation, with what the agency characterizes as a marked strangeness character. Supporting materials include gendarmerie procès-verbaux and technical notes.

Metadata

Agency

GEIPAN / CNES

Release

2007-03-22

Type

PDF • .pdf

Length

26 pages

Classification

UNCLASSIFIED

Programs

GEIPAN, SEPRA, GEPAN

Tags

commercial aviation, radar-confirmed, instantaneous disappearance, GEIPAN D1, Coulommiers, France, 1994, Airbus A320, controlled airspace

Key points

• The UAP was independently confirmed by radar, elevating the case above purely visual witness testimony.
• The phenomenon disappeared instantaneously — the defining physical anomaly that drove the D1 (unexplained) classification.
• The chief steward was present in the cockpit, not the cabin, when the observation occurred, and served as the initial reporting witness to the captain.
• Flight AF3532 was a scheduled commercial Airbus A320-11 service on the Nice-London corridor, placing the encounter in controlled civil airspace.
• GEIPAN characterizes the case as 'moyennement consistant' (moderately consistent) with 'un caractère d'étrangeté marqué' (marked strangeness) — a pairing that signals evidential weight short of a high-confidence sighting but well above noise.
• The French gendarmerie filed formal procès-verbaux, indicating the incident was treated as a law-enforcement-level reportable event, not merely an informal crew note.
• The case is catalogued under the GEPAN/SEPRA/GEIPAN lineage, France's continuous government UAP investigation program running from 1977 onward.

Most interesting

• GEIPAN classification D1 is the highest-strangeness tier in the French system, reserved for cases where the phenomenon cannot be attributed to any identified natural, meteorological, or man-made cause.
• The instantaneous disappearance of a radar-tracked object over controlled airspace is the precise characteristic that French investigators treated as the case's strongest anomalous signature.
• A chief steward's presence in the A320 cockpit during cruise flight is operationally unremarkable but meant the initial report came from a cabin crew member, adding a second independent line of observation to the flight deck crew.
• Coulommiers lies in Seine-et-Marne, roughly 55 km east of Paris, placing the encounter within one of Europe's busiest air traffic control sectors — making an unconfirmed radar blip statistically unlikely to go unnoticed.
• The report was released to the public by GEIPAN on 22 March 2007, part of a deliberate transparency initiative in which CNES opened its UAP case archive online — the first such disclosure by a national space agency.