GEIPAN Case 1993-11-01335 — ECQUEVILLY (78) 15.11.1993

Brief

On November 15, 1993, at approximately 04:30, a resident of Ecquevilly (Yvelines, France) was woken by his dogs, looked out his bathroom window, and observed a circular formation of white, yellow, and blue-tinted lights approximately 5 meters above the ground — silent even after he opened the window — which then moved toward and over his house before disappearing instantaneously. Gendarmes conducted an on-site investigation days later, collecting witness sketches, photographs, and meteorological data. In a 2018 re-examination, GEIPAN analysts used the witness's reference conifers to estimate a maximum angular size of roughly 5° and calculated that a helicopter of that apparent size would have been approximately 55 meters away — too close to be inaudible — assigning the helicopter hypothesis only 30% probability and maintaining Classification D. A follow-up telephone call with the witness in July 2018 added two details absent from the 1993 procès-verbal: the departure was instantaneous rather than a continuation of trajectory, and the witness had the distinct impression the phenomenon was observing him.

Metadata

Agency

GEIPAN / CNES

Release

2007-03-22

Type

PDF • .pdf

Length

18 pages

Classification

D (GEIPAN — unexplained)

Programs

GEIPAN, GEPAN/SEPRA/GEIPAN

Tags

circular light formation, multi-colored lights, silent, low altitude ~5m, animal reaction, black-light strobe, ground illumination, instantaneous disappearance, single witness, France, 1993, GEIPAN D-class

Key points

• Observation on 15 November 1993 at approximately 04:30 by a single civilian woken by barking dogs; before locating the lights, the witness observed both his dogs and horses independently oriented toward the same direction.p.2
• The phenomenon appeared as a circular formation of lights estimated at 5 meters altitude, described as white, yellow, and bluish, producing strobe-like 'black light' pulses that cast colored patterns on the ground.p.2
• Complete absence of sound persisted even after the witness opened his bathroom window; total duration was 20–25 seconds, approximately 10 stationary and the remainder in directed movement toward the house.p.2
• GEIPAN angular analysis using reference conifers in witness sketches, cross-referenced with gendarmerie photographs and 1993 Géoportail imagery, estimated the phenomenon at approximately 5° angular width at closest approach — roughly equivalent to a closed fist held at arm's length.p.11
• At 5° angular size, an EC145-class helicopter (~4 m tall, head-on) would have been approximately 55 m from the witness — a distance at which rotor noise would necessarily be audible under the recorded pre-dawn environmental conditions.p.12
• All astronomical, meteorological, and atmospheric re-entry hypotheses were explicitly excluded; the helicopter hypothesis was assigned 30% probability and hallucination 15%, with no conventional explanation deemed sufficient to close the case.p.16
• Location maps were withheld from the public release to protect the witness's anonymity, given the isolated and easily identifiable nature of the rural property.p.3
• A July 2018 telephone follow-up — 25 years post-observation — yielded two details not recorded in the 1993 PV: the departure was an instantaneous disappearance rather than a continuation of trajectory, and the witness reported a persistent impression that the phenomenon was watching him.p.13
• The data synthesis table contains an apparent clerical error, listing the observation date as '13/07/1979' rather than 15/11/1993.p.14
• Case classification maintained at D (unexplained) following re-examination, with the investigator noting good testimonial consistency but flagging the absence of formal on-site angular measurements and the impossibility of a useful retrospective cognitive interview.p.17

Verbatim

• j'ai pu apercevoir, toujours dans un même silence, une forme tel qu'un cercle lumineux avec d'énormes lumières, les unes éclairant fortement et d'autres étant plus faibles

  p.2

• Étonné de ne pas entendre de bruit, j'ai ouvert ma fenêtre. Cette dernière étant ouverte, je n'entendais toujours pas de bruit.

  p.2

• ces lumières donnaient un genre de petits flashs de lumière noire comme dans une discothèque

  p.2

• Les caractéristiques physiques du PAN telles que décrites par le témoin sont clairement incompatibles avec toute hypothèse d'ordre astronomique ou météorologique.

  p.8

• Le PAN dans sa dernière phase (représentation au plus proche de la maison sur le croquis du témoin), occupait environ la moitié de la largeur du croquis, soit environ 5°.

  p.11

• sentiment que le PAN le regardait

  p.13

• un souvenir de grande beauté, sans aspect de peur

  p.13

• La consistance est bonne, avec un témoignage suffisamment détaillé et une enquête sur place effectuée peu de temps après par les Gendarmes, qui ont pu réaliser des photographies des lieux.

  p.17

Most interesting

• The witness's horses and dogs independently oriented toward the phenomenon before the witness himself located it — a dual-species animal reaction corroborating an attention-worthy environmental stimulus prior to any human observation.
• The synthesis data table lists the observation date as '13/07/1979', an apparent transcription error; the procès-verbal establishes the correct date as 15 November 1993.
• The 'black light' strobe description — 'flashs de lumière noire comme dans une discothèque' — refers to pulses that rendered the ground surface visually active in blue tones, a detail with no obvious analog in the known lighting signature of any registered aircraft operating near that location.
• GEIPAN analysts noted that the witness's initial altitude estimate of 5 meters, if maintained throughout the trajectory, would have placed the phenomenon on a collision course with the house — implying either altitude gain during the approach or a significant estimation error on the witness's part.
• The July 2018 telephone call produced an element absent from the 1993 gendarmerie PV: rather than continuing on trajectory over the house, the phenomenon vanished instantaneously — a detail the report explicitly flags as 'n'est pas dans le PV.'
• The witness went outside immediately after the phenomenon passed overhead and searched the site; the report notes he looked for traces on the ground, though no findings from that search are recorded in the dossier.
• Four civil and light-aviation aerodromes lie within 14 km of the observation site, none of which were authorized for VFR night operations on the date in question, and Paris's major airport approach corridors add further aeronautical density — yet none of the known traffic patterns or aircraft types account for the observed characteristics.