FBI-UAP-D028, FD-302, “Dark Triangle with Lights,” 2011
An FBI FD-302 records two witnesses’ account of a large, low, dark triangular object observed in 2011. The report describes three diffuse white corner lights, slow steady motion, a pulsing hum, estimated dimensions, and an unsuccessful attempt to record the object before it passed behind a tree line.
- File
- Document · Release 05
- Date
- 2011
- Extent
- 3 pages
- Agency
- FBI
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Probed Assessment
Key takeaways
- An interviewee described seeing a massive black isosceles triangular object after leaving a vehicle.
- The object reportedly had a diffuse white light, estimated as car-sized, recessed near each corner.
- Witnesses described the object as low to the ground with a low, pulsing hum.
Why it matters
This 3-page official record adds page-located primary-source material to the public history represented in Release 05. Its value lies in what the document records, not in independent confirmation of every reported event or estimate.
Corroboration
The assessment is grounded in the official PDF, reviewed page text, and faithful source excerpts. Statements attributed to witnesses or agencies remain source claims unless separately corroborated in the record.
Open questions
- • Which reported observations or technical estimates can be independently corroborated from contemporaneous records?
Probed separates this editorial assessment from the source claims below. It summarizes what the released artifact supports; it is not independent verification.
Official Description from War.gov
This document is an FBI FD-302, a form the Federal Bureau of Investigation (FBI) uses to record interviews. This FD-302 records an April 2025 interview with two former U.S. military service members, in which the interviewees describe an incident potentially involving unidentified anomalous phenomena (UAP) in June or July of 2011. An FBI digital rendering based upon the observers’ descriptions accompanies this document, under the title FBI-UAP-D029.
Preserved verbatim as source metadata. This wording is separate from Probed’s file-specific description and assessment.
File Context
Related entities
Tracker findings
An interviewee described seeing a massive black isosceles triangular object
The record states: An interviewee described seeing a massive black isosceles triangular object after leaving a vehicle.
The object reportedly had a diffuse white light, estimated as car-sized
The record states: The object reportedly had a diffuse white light, estimated as car-sized, recessed near each corner.
Witnesses reported a low pulsing hum
The record states: Witnesses described the object as low to the ground with a low, pulsing hum.
Witness estimated an 800-foot altitude and 200-foot length
The record states: A witness estimated an altitude near 800 feet and dimensions around 200 feet long by 100 feet wide.
Release provenance
- Release
- Release 05
- Official ID
- release-05-file-035-fbi-uap-d028-fd-302-dark-triangle-with-lights-2011
- Cleared
- Aug 7, 2026
Referenced Timeline
Large triangle reported
Witnesses reported a large triangular object moving over a residential area at night.
FBI interview conducted
The FD-302 documents the witness interviews in April 2025.
Source Claims
Claims are attributed to the released source and remain distinct from Probed’s assessment and tracker findings.
An interviewee described seeing a massive black isosceles triangular object after leaving a vehicle.
[J got out of the vehicle, and when he looked up, he saw a massive black isosceles Investigationon 04/M/2025 « EE GR United States x Ey ———— y This document contains neither recommendations nor conclusions of the FBI.
The object reportedly had a diffuse white light, estimated as car-sized, recessed near each corner.
The object had a car-sized white light in each of its three corners that emitted a diffuse glow and were recessed back a bit from the corners.
Witnesses described the object as low to the ground with a low, pulsing hum.
The object was low to the ground, and creating a low humming noise that made a pulsing sound.
One witness estimated the observation lasted about 10 to 15 seconds.
He had seen the object for approximately 10-15 seconds.
A witness estimated an altitude near 800 feet and dimensions around 200 feet long by 100 feet wide.
[MJ thought the object may have been 800 feet above the ground, and based on the dimensions of their environment, he estimated the object was 200 feet long and 100 feet wide.
The object was described as moving slowly and steadily while the pulsing sound continued.
The object was moving slowly and steadily, and he also heard the pulsing sound.
Source Material & Evidence
Research Map
Lines appear only when two entities share a row-level source claim or dated timeline event. Unconnected nodes remain visible without implying a relationship.