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Case study · CASE-055 · Close encounter with reported injuries / military helicopters

Cash-Landrum incident

OpenOpen / disputedWhere Near Huffman and Dayton, TexasWhen 1980-12-29

Case

Overview
Betty Cash, Vickie Landrum and Colby Landrum reported a diamond-shaped object and about 23 helicopters, some identified as CH-47 Chinooks, then injuries they attributed to the encounter. They sued the U.S. government; the case was dismissed after the services and NASA denied involvement.
Investigative phases
Witness reports; Bergstrom AFB inquiry (1981, reported); Army Inspector General inquiry (1982, reported); federal lawsuit dismissed
Reported phenomena
Diamond-shaped glowing object; heat; many helicopters
Public evidence status
Court opinion public; medical and military records not fully public
Alternative explanations / caveats
Unidentified military helicopter operation; medical causes of injuries disputed (chemical vs radiation)
Next research tasks
Obtain court filings and Army IG records via FOIA; verify helicopter unit records for 1980-12-29
Last reviewed
2026-11-11

Assessment

Event date
1980-12-29
Source category
Court record; witness testimony
Original data accessibility
Limited
Witness / instrument basis
Three witnesses; medical claims
Corroboration limitations
Military involvement denied; medical causation disputed
Extraordinary claim assessment
Unverified
Current status
Open / disputed
Priority research task
FOIA Army IG records
Lead source ID
SRC-V86-29
Last reviewed
2026-11-11

Evidence (1)

Documents gathered (1 line of evidence)

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