{
 "publisher": "DroneLedger",
 "site": "https://droneincidents.com",
 "generated": "2026-10-16T03:47:01+00:00",
 "release": "20261016T034702196018-450b78",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "DroneLedger (droneincidents.com)",
  "excludes": "Quoted source passages and linked articles remain the copyright of their publishers; they are included as short quotations for verification. Linked media and satellite images remain the rights holders' property; no image or video licence is granted by this dataset. Fonts (SIL OFL) and map data (Natural Earth, public domain) keep their own terms. City and region names in automatically published dossiers are checked against GeoNames (geonames.org, CC BY 4.0). Drone drawings and animations are schematic illustrations of a type, not evidence about any incident."
 },
 "assessmentNote": "DroneLedger assessment, not a finding. Editorial likelihood bands, not calibrated statistical confidence intervals. Unknown has no numeric probability. Outcomes are attributed reports; no totals or inference of intent from a hit.",
 "assessmentScale": {
  "version": "di-estimative-v1",
  "levels": {
   "almost_certain": {
    "low": 95,
    "high": 99
   },
   "very_likely": {
    "low": 80,
    "high": 95
   },
   "likely": {
    "low": 55,
    "high": 80
   },
   "roughly_even_chance": {
    "low": 45,
    "high": 55
   },
   "unlikely": {
    "low": 20,
    "high": 45
   },
   "very_unlikely": {
    "low": 5,
    "high": 20
   },
   "almost_no_chance": {
    "low": 1,
    "high": 5
   },
   "unknown": {
    "low": null,
    "high": null
   }
  }
 },
 "evidenceNote": "Each dossier separates three claims: drone presence, impact and attribution, each with its own evidence state and supporting sources. 'reported' means a source describes the claim without sufficient identification evidence; claims by parties to a conflict are never 'confirmed' on their own. Counts reflect dossiers in this curated archive, not all incidents worldwide. windowStart/windowEnd are reporting-window calendar bounds, not individual event days; legacy date remains the compatibility/sorting date for such records.",
 "locationNote": "lat/lon are the dossier's own approximate coordinates (see locationPrecision) and are empty when the incident location is unknown. referencePoint {lat, lon, level, name} is a display reference only: a fixed point in the named city (GeoNames), region (its administrative seat), sea or country (Natural Earth label point), derived at build time. It is not a geolocation, not an estimate of the incident location and may change when the dossier's place becomes more precise: reference point; incident location unknown.",
 "detailsNote": "media, operationalEffects, followUp and archiveEntity are editorial, source-indexed additions. Media is publisher-link only, has its own evidence status and never establishes drone presence or attribution. Debunked original-media links are removed; archived revisions omit media references. archivePattern is computed from mapped published event records at generated time, not a worldwide incident count. Null asOf means not established; publication time is not substituted.",
 "dataset": {
  "doi": "10.5281/zenodo.23345422",
  "url": "https://doi.org/10.5281/zenodo.23345422",
  "note": "Citable weekly snapshot (CSV + JSON) archived on Zenodo; this DOI always resolves to the latest version."
 },
 "howToCite": "Cite the dossier URL and revision, e.g. DroneLedger, “Wine Trader hit off Romania; president says drones struck the ship”, dossier wine-trader-fire-off-romania-2026-10-15, revision 4, updated 2026-10-15. https://droneincidents.com/incident/wine-trader-fire-off-romania-2026-10-15/",
 "incident": {
  "id": "reagan-national-airport-drone-report-2022-07-21",
  "title": "Reagan National flights disrupted after reported drone",
  "place": "Arlington",
  "country": "United States",
  "countryCode": "US",
  "date": "2022-07-21",
  "dateKind": "event",
  "scope": "single",
  "category": "airport",
  "droneStatus": "reported",
  "impactStatus": "confirmed",
  "attributionStatus": "none",
  "lat": 38.88,
  "lon": -77.1,
  "locationPrecision": "region",
  "summary": "Flights at Ronald Reagan Washington National Airport were temporarily disrupted on 21 July 2022 after a reported drone sighting. The airport subsequently reported normal operations by 14:15 local time. Drone presence remains reported rather than independently identified here.",
  "impact": "ARLnow records a ground stop and departure delays, followed by the airport normal-operations update. GAO later confirms that flight operations were halted after a drone sighting. No fixed closure duration or verified diversion total is assigned; an average delay is not the duration of the stop.",
  "evidence": "ARLnow quotes the airport operational update and describes FAA notices. GAO provides a separate official safety review. Both may share the original sighting and operational records; separate publications are not two technical detections. No physical drone evidence is supplied in the reviewed passages.",
  "unknown": "The local event date is 21 July in Arlington, Virginia, not a separately established drone position in Washington DC. ARLnow gives approximate FAA timing and a later normal-operations time; these do not establish continuous suspension until14:15. Its quoted informal diversion reports are not official counts and are omitted. Operator, device type, precise count, physical harm and attribution remain unestablished.",
  "attribution": "No operator or responsible organisation established by the reviewed sources.",
  "sources": [
   {
    "label": "ARLnow: FAA notice and airport operational update",
    "url": "https://www.arlnow.com/2022/07/21/developing-ground-stop-at-national-airport-after-report-of-drone-in-the-area/",
    "published": "2022-07-21",
    "family": "local-news-now"
   },
   {
    "label": "US GAO: later official airport-safety overview",
    "url": "https://www.gao.gov/blog/drones-take-flight-so-do-concerns-about-safety",
    "published": "2024-06-27",
    "family": "us-gao"
   }
  ],
  "timeline": [
   {
    "date": "2022-07-21",
    "text": "Temporary ground stop after reported drone sighting; airport said normal operations resumed by14:15EDT. Exact suspension duration not established here.",
    "source": 0
   },
   {
    "date": "2024-06-27",
    "text": "GAO retrospective identifies a July2022 operations halt after a drone sighting.",
    "source": 1
   }
  ],
  "droneStatusSources": [
   0,
   1
  ],
  "impactStatusSources": [
   0,
   1
  ],
  "attributionSources": [],
  "droneTypes": [],
  "claims": [
   {
    "id": "reported-ground-stop",
    "axis": "drone",
    "statement": "The local report links the ground stop to reported drone flying.",
    "quote": "The ground stop and delays follow reports of someone flying a drone in the area.",
    "claimant": "ARLnow reporting on FAA notice",
    "originId": "dca-faa-notice-20220721",
    "relay": "relayed",
    "assessment": "supports",
    "note": "Short literal passage read on the public source page; reported drone presence is not technical identification.",
    "sourceIndex": 0,
    "quoteCheckedAt": "2026-10-16",
    "quoteTranslation": {}
   },
   {
    "id": "airport-resumption",
    "axis": "impact",
    "statement": "The airport said normal operations had resumed by14:15.",
    "quote": "Normal operations resumed by 2:15 p.m.",
    "claimant": "Reagan Airport operational update reproduced by ARLnow",
    "originId": "dca-airport-update-20220721",
    "relay": "relayed",
    "assessment": "supports",
    "note": "Short literal passage read on the public source page; reported drone presence is not technical identification.",
    "sourceIndex": 0,
    "quoteCheckedAt": "2026-10-16",
    "quoteTranslation": {}
   },
   {
    "id": "gao-operations-halt",
    "axis": "impact",
    "statement": "GAO describes a July2022 halt after a drone sighting.",
    "quote": "flight operations were halted at Reagan Washington National Airport",
    "claimant": "US Government Accountability Office",
    "originId": "gao-dca-overview-20240627",
    "relay": "relayed",
    "assessment": "supports",
    "note": "Short literal passage read on the public source page; reported drone presence is not technical identification.",
    "sourceIndex": 1,
    "quoteCheckedAt": "2026-10-16",
    "quoteTranslation": {}
   }
  ],
  "review": "editor",
  "checkedAt": "2026-10-15",
  "autoCheckedAt": null,
  "updatedAt": "2026-10-16",
  "revision": 1,
  "series": [],
  "windowStart": null,
  "windowEnd": null,
  "windowBasis": null,
  "assessment": null,
  "outcome": [],
  "assessment_scale_version": null,
  "assessment_operator_subject": null,
  "assessment_operator_level": null,
  "assessment_operator_range_low": null,
  "assessment_operator_range_high": null,
  "assessment_target_subject": null,
  "assessment_target_level": null,
  "assessment_target_range_low": null,
  "assessment_target_range_high": null,
  "assessment_droneType_subject": null,
  "assessment_droneType_level": null,
  "assessment_droneType_range_low": null,
  "assessment_droneType_range_high": null,
  "media": [],
  "operationalEffects": [],
  "followUp": [],
  "archiveEntity": {
   "key": "ronald-reagan-washington-national-airport",
   "kind": "airport",
   "label": "Ronald Reagan Washington National Airport",
   "sourceIndex": 0
  },
  "namedLocation": null,
  "publisherMedia": [],
  "archivePattern": {
   "asOf": "2026-10-16T03:47:01+00:00",
   "entityKey": "ronald-reagan-washington-national-airport",
   "windows": [
    {
     "days": 30,
     "records": []
    },
    {
     "days": 90,
     "records": []
    }
   ],
   "note": "Only published archive records with an editorial entity mapping; unassigned records excluded. Not all real-world incidents or a common cause. No same-day matching."
  },
  "impactReports": [],
  "corroboration": "curated",
  "interceptionReported": {
   "evidenceState": "reported",
   "note": "Official aggregate claims, not independently verified kills. Parts are included only when explicitly sourced and sum to the reported total. Catalogue countermeasures are not incident evidence.",
   "counts": []
  },
  "referencePoint": null,
  "labels": {
   "category": "Airport disruption",
   "droneStatus": "Reported",
   "impactStatus": "Confirmed",
   "attributionStatus": "Not established"
  },
  "url": "https://droneincidents.com/incident/reagan-national-airport-drone-report-2022-07-21/",
  "citation": "DroneLedger, “Reagan National flights disrupted after reported drone”, dossier reagan-national-airport-drone-report-2022-07-21, revision 1, updated 2026-10-16. https://droneincidents.com/incident/reagan-national-airport-drone-report-2022-07-21/",
  "history": [
   {
    "revision": 1,
    "date": "2026-10-16",
    "at": "2026-10-16T02:06:36.478+00:00",
    "note": "Curated dossier created after checking the cited sources line by line."
   }
  ]
 }
}