{
  "title": "Aircraft engine data for AI serial and document identity",
  "source_page": "https://fiund.com/industries/aircraft-engine-part-serial-document-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A receiving folder is broader than its document subject",
    "context": "Neutral office cards use entirely fictional serials. No real engine component or technical document is represented.",
    "records": [
      [
        "1",
        "Receiving index",
        "Folder F8 holds serial X17 and serial X71."
      ],
      [
        "2",
        "Document summary",
        "Note N2 names X71; folder F8 shared."
      ],
      [
        "3",
        "Lookup request",
        "Find a note explicitly covering X17."
      ]
    ],
    "question": "Does N2 satisfy the lookup?",
    "answer": "No. Record 1 gives both serials the same receiving folder, but record 2 names X71 alone. Record 3 asks for an exact serial match. Keep N2 linked to X71 and record the X17 note as missing rather than transposing the digits.",
    "failureModes": [
      "Inferring subject from a shared folder",
      "Collapsing similar serial strings during normalization"
    ],
    "fields": [
      [
        "receiving_folder",
        "Groups records without defining scope"
      ],
      [
        "part_serial",
        "Identifies the requested instance"
      ],
      [
        "document_subject",
        "Records the serial actually named"
      ]
    ],
    "holdout": "Use a document explicitly listing both serials and verify each listed key.",
    "boundary": "Administrative identifiers only; no aircraft design, propulsion parts, actual records or approval determinations."
  }
}