Gate C17, Concourse C, O'Hare International Airport, Chicago, United States
The Chicago O'Hare Airport Sighting
Around 4:15 p.m. on 7 November 2006, a group of United Airlines employees reported a dark grey disc-like object hovering over Gate C17 at Chicago O'Hare. The incident generated internal airline/FAA communications later exposed through a Chicago Tribune FOIA request. No radar detection was reported.
Why This Case Matters
A major modern aviation case with numerous professional airport witnesses, a precise controlled-airspace location, contemporary communications and an unusually detailed technical investigation.
Chronology
- 7 Nov 2006 ~16:15 United ramp/operations staff report object over C17
- supervisor contacts FAA tower
- object reportedly departs upward through cloud deck
- incident initially denied/minimised
- Jan 2007 Chicago Tribune reporting/FOIA makes communications public
- Mar 2007 NARCAP technical report
The Witnesses
Evidence
The following evidence types are documented for this case:
Conventional explanations: Hole-punch cloud or unusual cloud/lighting effects were suggested by the FAA and later commentators. Those can address the reported cloud hole, but do not automatically explain a clearly bounded metallic object if the witness descriptions are accurate.
What Remains Unresolved
- Exact witness count
- all original statements
- full FAA/United communication archive
- whether any surveillance imagery existed
- cloud-hole timing
- object altitude/size.
Key Takeaways
- The lack of radar is important and should be explicit. The case is strongest as a multi-professional visual event with contemporaneous communications, not as a multi-sensor encounter.
Sources
Primary and secondary sources for this case file: