The crew observation
Flight and witness records
The original reproduced forms identify helicopter N-75 and the callsign ALFACOUGAR; the flight presentation uses ACOUGAR. “Pelican” is a familiar case label, not a callsign established by these records. The official release describes a coastal patrol between San Antonio and Quinteros, its spelling. The crew forms give departure and destination codes SCIE and SCVM, with a heading of 015 degrees and helicopter altitude around 4,500 feet. Those are flight details, not a measurement of the target's altitude or position. Neira form, Rodriguez form.
Camera operator Marcelo Neira Alarcon gives an onset of 16:48 UTC, approximately nine minutes of observation and estimated visibility of 30 nautical miles. Pilot Carlos Rodriguez Rodriguez gives 16:52 UTC, nine minutes twelve seconds and visibility of 50 nautical miles. His declaration is dated 17 April 2015; Neira's declaration-date field is blank. These named forms preserve the crew's accounts but should not be described as same-day statements. Rodriguez's reproduced pages contain a typed name and date without a visible autograph signature.
The onset differences affect any attempt to align a witness account with a track or camera frame. Likewise, visibility is an estimate of viewing conditions, not a target range. The forms' geographical position and the presentation's beginning and ending coordinates concern different source descriptions of the flight. Combining them into one precisely timed camera location would manufacture a synchronisation which the documents do not provide.
Appearance and communication
The crew describe a target they could not identify visually or through the camera. Neira's account places the initial thermal appearance ahead and near the helicopter's level. Rodriguez describes an elongated form, central lights and two apparent thermal foci. Both describe two occasions on which material appeared to leave the target. These are significant observations to explain, but the words gas or liquid do not identify a substance: no material was collected, and the image does not supply a chemical analysis. Crew forms.
The communication record also needs its original distinctions. Rodriguez records radio reporting; corresponding communication checkboxes in Neira's form are uncompleted. The narrative describes attempts to contact the unidentified source without a response. That establishes a reported communication attempt, not that a particular airliner received and ignored a directed call. Ground-radar echo boxes are uncompleted, while onboard-radar and instrument-malfunction fields are marked negative. An empty ground-radar field cannot become a checked finding of no return.
The recording and technical reports
Camera information and image limits
Rodriguez explicitly identifies the camera as a WESCAM MX-15 HDI. This matters because an early external analysis assumed a different instrument. Focal length, field of view and image processing affect conversion from a visible spot to an angle; the camera name is therefore part of the evidence needed for a geometrical reconstruction. Rodriguez form, IPACO report.
The recording exists publicly in reproductions. Four inspected frames from a compressed MP4, at 40, 240, 510 and 580 seconds, show changing camera modes and fields of view; a late infrared frame shows a dark target with an elongated trailing feature. These selected frames provide a limited view of the recording. Complete playback, audio and continuity have not been assessed here, and the linked original transport-stream file was not inspected. Recording reproduction, released-media archive.
In black-hot infrared display, darker areas represent the selected image contrast. Their appearance depends on instrument settings as well as the radiation reaching the camera. Two dark areas do not by themselves measure two engines, and a brightness boundary does not necessarily outline a solid body. The displayed 489 FT readout has not been established as a valid measured target range. These distinctions prevent an unresolved image from acquiring precise physical properties through its screen labels alone.
Meteorological and image interpretations
Luis Salazar's four-page report presents meteorological context, including a Santo Domingo sounding, satellite imagery and an aviation weather observation. He argues against a weather phenomenon or balloon and infers a hot target from its contrast with the background. The inference of a temperature above 50 degrees Celsius is based on that analogy, rather than demonstrated radiometric calibration. A temperature calculation would require information about the instrument response, atmosphere and target emission properties. The helicopter's altitude also cannot establish the target's height simply because it appeared near the same level. Salazar report.
The report contains date-label errors, while its heading and meteorological material identify the intended 2014 case. These discrepancies should not generate a second observation or silently support a precisely dated atmospheric reconstruction. The reproduced charts are substantive material for evaluating Salazar's argument; their inclusion does not independently verify every inference he draws from the image.
Alberto Vergara's report explicitly states that distance is unknown. The inspected opening and conclusion interpret processed imagery, classify the case as unidentified and recommend further study. Inferred relief or volume in a processed two-dimensional image is an analyst's interpretation, not an independent measurement of three-dimensional structure. The final page excludes an unmanned-aircraft type; it does not support the broader exclusion of manned aircraft stated in an English contributor description on the document mirror. Pages 2–5 were not inspected, and a handwritten annotation does not securely establish the report's authorship date. Vergara report, pages 1, 6 and 7.
Official assessment and radar evidence
CEFAA's archived release of 6 January 2017 records its classification as FANI, Fenómeno Aéreo No Identificado, meaning an unidentified aerial phenomenon. The classification describes the outcome of that assessment process. It does not establish extraordinary propulsion or a source beyond conventional aviation. The inspected institutional material does not establish a later case-specific final disposition. Archived official release.
The release describes the absence of authorised traffic near the helicopter and failure to detect the reported object. That wording concerns the target as reported and the vicinity investigated. It is compatible with a known aircraft at a greater distance. The released radar presentation provides a reason to keep these questions separate: two inspected replay screenshots label ACOUGAR and IBE6830/A346 independently at 16:48:32 and 16:54:40. The candidate airliner is therefore present in the supplied radar-image record, even though the crew's unknown target was not identified from radar during the observation. Flight-track presentation.
Those screenshots are not raw radar logs. Their presence supports investigating IBE6830, but does not establish that the camera was following it. That connection requires synchronised positions, camera pointing and a comparison with the recorded angular changes. Conversely, a claim of radar invisibility cannot disregard a known candidate merely because it was outside the crew's estimated vicinity.
The document mirror attributes recovery to OmegaClick and a request to Chile's Directorate General of Civil Aviation, DGAC. The publisher explains that it did not receive the material directly from DGAC. The private transfer emails were not independently inspected. The reproduced forms and reports can be read and compared, while that chain remains less secure than a directly authenticated institutional release of the complete file. Black Vault provenance statement.
Competing aircraft reconstructions
IPACO's conditional landing-aircraft model
The IPACO report by Antoine Cousyn, François Louange and Geoff Quick, dated 26 November 2015 and revised in January 2017, models a constant physical separation between two apparent hot spots. Combining an assumed separation with their image angle yields a conditional distance; subsequent angular change then informs relative motion. An illustrative eleven-metre separation leads to a medium twin-engine airliner approaching to land, with a calculated speed around 298 knots. These numbers depend on the chosen separation, projection and optical model. They are not measured target dimensions, range or speed. IPACO report.
The original calculation assumes a EUROFLIR 350-3 camera. A 2017 note acknowledges the reported WESCAM instrument without reworking the initial analysis. This leaves a substantive question about which camera parameters support the results. The report's trail discussion also changed, including condensation at a higher altitude alongside its earlier proposed explanation. Its landing twin-engine model should remain distinct from the later departing four-engine A340 proposal; the two cannot share a candidate identity or inherit each other's numerical outputs merely because both concern aircraft.
IBE6830 and the missing positions
Mick West and other Metabunk contributors developed an aircraft and condensation interpretation by comparing flight positions, relative bearing, bank and camera/coastline relationships. Their initial discussion considered other possibilities before focusing on IBE6830. The attached FlightAware export identifies a Santiago–Madrid flight on 11 November 2014, but has an early position gap between 16:48:40 and 16:54:00 UTC. Automatic dependent surveillance–broadcast, ADS-B, reports aircraft positions; a gap in a circulated track means that the intervening curve needs another source or a reconstruction. Initial substantive reconstruction post, attached flight export.
The first reconstruction filled that interval using departure charts and comparison departures. Later discussion identified shortcomings in its turn geometry and speed. In September 2023, contributors incorporated radar-derived positions into a revised track. The recovered attachment contains 46 timestamp-coordinate pairs, with ten inserted pairs in the earlier gap. It documents a revision of the analytical model; it does not create 46 independently received observations. Radar-image registration and the division between measured and reconstructed components remain relevant to testing the fit. Missing-track discussion, September 2023 revised track.
The helicopter track is also derived: its metadata describes conversion from video coordinates and time by Metabunk, rather than an original navigation log. This gives the conventional account a transparent path for further checking while preserving its dependencies. An airliner can appear to maintain a similar bearing when both observer and target move; the proposed explanation must show that relative geometry, rather than treating apparent steadiness as either a stationary object or an automatic aircraft identification.
Bearing objections and later corrections
Leslie Kean's 17 January 2017 follow-up corrects her earlier description of the target being left of the helicopter over the ocean and recognises an aircraft explanation as legitimate. She presents Robert Powell's bearing objection and Rob Jeffs' coastline-based inference of an approximately seven-degree camera offset. That offset is a proposed alignment correction, not a recovered calibration certificate. Its ability to align the candidate flight depends on the reference features and instrument assumptions used. The article is evidence of the changing debate, not a new official classification; its inconsistent local/UTC captions do not supersede the original clocks. Kean follow-up.
Documentary chronology
The flight presentation equates 16:48–17:01 UTC with 13:48–14:01 local time, consistent with the selected recording's UTC−3 display. Separate source onset clocks remain visible.
| Date or time | Development | Evidential role |
|---|---|---|
| 11 November 2014, 16:48 UTC | Neira's onset and official release's time. | Reported beginning; distinct from pilot's onset. |
| 16:52 UTC | Rodriguez's onset. | Witness-form variant, not silently adjusted. |
| 16:48:40–16:54:00 UTC | Early gap in attached airliner export. | Missing received positions requiring additional evidence or modelling. |
| 17 April 2015 | Rodriguez dates his declaration. | Later testimony, not event-night signature. |
| 26 November 2015 | IPACO report dated. | Conditional aircraft analysis using assumed camera model. |
| 6 January 2017 | CEFAA publishes its unidentified classification. | Dated institutional position. |
| 9 January 2017 | IPACO revision. | Camera-model acknowledgement and changed trail discussion. |
| 17 January 2017 | Kean publishes follow-up. | Corrected viewing description and competing bearing analyses. |
| January 2023 | Document mirror publishes expanded source collection. | Reproduced forms, technical material and radar presentation. |
| September 2023 | Metabunk discussion revises missing track with radar-derived positions. | Later analytical artifact, not a new official finding. |
The chronology shows why publication history belongs alongside observation history. A later reconstruction can improve a proposed explanation without retrospectively becoming a crew measurement, and a document release can expand scrutiny without changing the committee's classification by itself.
Evidence assessment
The case has substantive witness, institutional and technical documentation. The airliner explanation is developed through a specific candidate, flight data and relative geometry, making it more informative than a general assertion that the image resembles an aircraft. Its strength depends on source timing and optical alignment. The official unidentified classification records the committee's outcome in January 2017; neither that outcome nor an analyst's confident identification substitutes for independent calibration and replication. Apparent shape, trails and temperature require separate assessment because they arise from different observations and modelling assumptions.
A departing airliner with condensation
IBE6830 provides a specific conventional candidate supported by its presence in the supplied radar images and an evolving flight reconstruction. Relative motion and condensation offer explanations for steadiness and apparent emissions. The outstanding task is an independent fit using authenticated positions and camera orientation, including the initially missing interval.
Another aircraft and trail mechanism
IPACO's landing twin-engine model supplies a distinct geometrical proposal. Its assumed spot separation and camera model govern its results. Comparing this model with the departing A340 requires separate inputs; possible aircraft-related trails do not by themselves choose between candidates or identify emitted material.
An unidentified physical target
The crew's inability to identify the target and its unusual appearance explain the investigation. Unknown range limits interpretation of apparent size, level and motion. The inspected record does not independently establish exceptional performance, a measured hot body or a source beyond conventional aviation.
Atmospheric and imaging effects
Atmosphere, focus, display settings and unresolved image features can alter the apparent form of a distant source. These effects are relevant to testing both aircraft and anomalous-object models. They should be examined against the actual instrument and original imagery, rather than used as a blanket explanation or disregarded because observers were experienced.
Assessment snapshot
| Proposition | Assessment | Basis and limit |
|---|---|---|
| The crew reported and recorded an unidentified target | Strong documentary support | Named forms, official release and selected recording frames; complete original playback absent. |
| CEFAA classified it as unidentified in January 2017 | Supported dated institutional position | Archived release; current case-specific disposition not established. |
| IBE6830 was present in the supplied radar record | Supported by selected screenshots | Presence does not independently prove camera alignment. |
| A departing A340 explains the recording | Developed conventional reconstruction | Flight, bearing and trail comparisons; mixed track and calibration dependencies remain. |
| Target temperature, size and substance were measured | Not established | Image analogy, unknown range and unsampled material. |
Claim ledger
| Claim | Source role | Main uncertainty | Evidence that would sharpen the assessment |
|---|---|---|---|
| No radar return establishes radar invisibility | Official narrative and witness fields | Known distant traffic versus reported vicinity; incomplete boxes | Original radar logs and synchronised coverage analysis |
| Two dark patches establish two engines | Image interpretation | Resolution, optical projection and settings | Original frames and tested instrument model |
| Infrared contrast establishes temperature above 50°C | Meteorological analyst inference | Uncalibrated image/background analogy | Radiometric data and target/atmosphere assumptions |
| An inferred seven-degree offset resolves identification | Journalistic account of reconstruction | No independent pointing calibration | Instrument alignment records and reproducible coastline fit |
| Revised track fills the early interval accurately | Analytical KML and radar reconstruction | Registration and measured/estimated components | Original positional data and independently repeated model |
Open questions
Camera pointing and time alignment
Which original records establish camera orientation relative to the helicopter and synchronise witness onset, display time and radar replay? Resolving these inputs would allow a firmer test of the proposed flight alignment.
Track reconstruction and uncertainty
Which components of the revised path derive from received positions, radar-image measurement or estimation? Their uncertainties should propagate into the optical comparison rather than disappear in a smooth plotted curve.
Present institutional disposition
Has CEFAA or its successor published a later case-specific assessment? The January 2017 release is clear historical evidence; a current answer requires a dated original record of its own.
Further research
Witness record
Neira and Rodriguez provide different onset and visibility estimates while identifying the same date, helicopter and general flight circumstances. Their professional roles explain why their reports entered an aviation investigation; they do not independently determine an unresolved target's range or composition. Typed witness records, marked instrument fields and narrative statements should retain their distinct functions. Operator form, pilot form.
The later analysts contribute interpretation rather than additional event witnesses. Their conclusions can be compared through assumptions, data and reproducibility. Multiple publications using the same recording or track remain dependent on those shared sources.
Source library
Crew records and institutional history
- Neira's three-page form and Rodriguez's two-page form: all reproduced pages visually read; later/undated declarations with original field distinctions retained.
- CEFAA release, 6 January 2017 archived snapshot: complete substantive release read; dated official classification.
- Radar/flight presentation: header and complete embedded screenshots in slides 3 and 15 inspected; remaining radar images not fully audited.
Recording and technical interpretations
- MP4 reproduction: four paused frames inspected, not full playback or audio.
- Salazar report: all four pages read visually, including weather material and conclusion.
- Vergara report: pages 1, 6 and 7 inspected; central intervening pages remain unread.
- IPACO report: complete substantive sixteen-page text read, with selected visual inspection; original camera assumption and conditional model retained.
Flight reconstruction and debate
- Metabunk initial reconstruction: substantive initial post and selected first-page posts read; the entire six-page thread was not inspected.
- Missing-track discussion: all nine substantive posts read, including 2023 revisions; revised attachment structurally parsed and all 46 pairs read, without independent plotting or fit.
- FlightAware export copy and derived helicopter track: structural inspection and provenance labels, not original receiver or onboard navigation logs.
- Kean follow-up, 17 January 2017: complete substantive article read; attributed analyses and corrections, not official reclassification. Linked images are not republished here.
Release provenance and later summaries
- Black Vault archive introduction: release and provenance statement read; private emails and every linked collection not inspected.
- 3AF/SIGMA 2020 summary: only the first PDF page, printed page 47, fully read and visually inspected. Its summary does not replace the uninspected underlying study.