UNRESOLVED
CF-GEI-20090602355 UNRESOLVED
The Compiègne Silent Plate
CASE FILE — CF-GEI-20090602355 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2009-06-30
Location Reported location of the sighting or event
Compiègne, Oise, France
Duration Estimated duration of the observed phenomenon
Unknown
Object Type Classification of the observed object based on witness descriptions
rectangle
Source Origin database or archive this case was sourced from
geipan
Witnesses Number of known witnesses who reported the event
1
Country Country where the incident took place
FR
AI Confidence AI-generated credibility score based on source reliability, detail consistency, and corroboration
85%
On June 30, 2009, a motorist traveling near Compiègne, France reported observing an unusual aerial object described as a dark "plaque" or plate-like shape in flight. The witness contacted GEIPAN by telephone to report the sighting, describing the object as performing a sudden 45-degree turn before disappearing in the direction of Lille. Notably, the witness reported hearing no sound whatsoever from the object during the observation.
The case was investigated by GEIPAN (Groupe d'études et d'informations sur les phénomènes aérospatiaux non identifiés), France's official UAP investigation service operated by CNES. Despite multiple follow-up attempts by investigators, the witness never provided additional crucial information including the precise location of the sighting, the object's position in the sky, the duration of the observation, or further details about the object's characteristics. No official police report (PV - procès-verbal) was ever submitted to GEIPAN.
Due to the severe lack of investigative data, GEIPAN classified this case as "C" (insufficient information for analysis). The case remains in their files as an unresolved sighting where the available information is too sparse to permit meaningful investigation or identification of the phenomenon.
02 Timeline of Events
June 30, 2009, time unknown
Initial Sighting
Motorist observes dark plate-like object in flight near Compiègne
During observation
45-Degree Turn Maneuver
Object performs sudden 45-degree turn, no sound heard by witness
End of observation
Object Disappears
Object disappears from view traveling in the direction of Lille
Shortly after incident
Telephone Report to GEIPAN
Witness contacts GEIPAN by phone to report the sighting
Following weeks/months
Failed Follow-up Attempts
GEIPAN makes multiple attempts to obtain additional information from witness without success. No police report filed.
Case closure
Classification C Assigned
GEIPAN officially classifies case as C due to insufficient information for analysis
03 Key Witnesses
Anonymous Motorist
Civilian driver
low
Motorist traveling near Compiègne who reported the sighting by telephone to GEIPAN but failed to provide follow-up information despite multiple requests from investigators.
"J'ai vu à hauteur de Compiègne le déplacement d'une 'plaque' sombre volante effectuant un virage et qui disparaît en direction de Lille. Aucun bruit n'a été entendu."
04 Analyst Notes -- AI Processed
This case presents significant analytical challenges due to the minimal data collected. The witness's description of a "plaque" or plate-like dark object is intriguing but lacks the specificity needed for proper evaluation. The reported 45-degree turn could indicate controlled flight, but without information about altitude, speed, distance, or angular measurements, this detail cannot be properly assessed. The absence of sound is noteworthy and potentially significant, though it could be explained by distance, wind conditions, or the witness being inside a moving vehicle.
The credibility assessment is complicated by the witness's failure to provide follow-up information despite GEIPAN's multiple requests. This non-cooperation pattern raises questions about the witness's reliability or perhaps their certainty about what they observed. The single-witness nature of the report, combined with the lack of photographic evidence, radar data, or corroborating witnesses, significantly limits the investigative value. The fact that the witness was driving also introduces questions about attention, viewing angle, and the brief nature of the observation. GEIPAN's classification as "C" is appropriate given these limitations.
05 Theory Comparison
BELIEVER ANALYSIS
Anomalous Silent Craft
The combination of the unusual plate-like shape, the sudden 45-degree maneuver, and the complete absence of sound could indicate an unconventional craft with advanced propulsion. The dark color and silent operation are characteristics often reported in UAP cases. However, this interpretation is severely limited by the lack of detailed observational data.
SKEPTIC ANALYSIS
Conventional Aircraft Misidentification
The object was likely a conventional aircraft, possibly an ultralight, small plane, or glider performing a normal banking turn. The dark appearance could be due to lighting conditions, and the apparent silence explained by the witness being inside a moving vehicle with windows closed or the aircraft being at significant distance. The 45-degree turn is consistent with standard aviation maneuvers.
Large Bird or Airborne Debris
Given the witness's description of a 'plate' shape and the brief observation from a moving vehicle, this could represent a large bird (such as a raptor) seen at an oblique angle, or even a piece of flat debris caught in wind currents. The 45-degree turn would be consistent with natural flight patterns or wind effects.
06 Verdict
ANALYST VERDICT
This case remains unresolved not due to the inexplicable nature of the phenomenon, but due to insufficient data for analysis. The most likely explanations range from conventional aircraft (possibly a dark-colored ultralight or small plane performing a banking turn) to misidentification of a large bird or even a piece of airborne debris. The reported 45-degree turn is consistent with normal aviation maneuvers. The absence of sound could be explained by the witness being inside a vehicle or the object being at significant distance. Without additional data points—particularly the object's apparent size, altitude, duration of observation, and precise viewing conditions—no definitive conclusion can be reached. The case's significance is minimal from an investigative standpoint, serving primarily as an example of how critical detailed witness testimony is for UAP analysis.
AI CONFIDENCE SCORE:
85%
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