{
 "public_id": "AIR-2026-0093",
 "incident_id": "2026-04-waymo-san-antonio-flood-sweep",
 "date_disclosed": "2026-04-21",
 "date_occurred": "2026-04-20",
 "title": "A Waymo detected untraversable floodwater, slowed but did not stop, drove in and was swept into a San Antonio waterway",
 "class": "safety_failure",
 "attack_surface": "autonomous_ops",
 "initial_vector": "none_autonomous_action",
 "agent_capability_abused": [
  "autonomous_driving",
  "hazard_detection",
  "stop_decision"
 ],
 "target_product": "Waymo 5th and 6th Generation Automated Driving Systems",
 "target_vendor": "Waymo (Alphabet)",
 "autonomy_level": "fully_autonomous",
 "impact_realized": true,
 "impact_type": [
  "property_damage"
 ],
 "blast_radius": "one vehicle lost near Salado Creek; 3,791 automated driving systems recalled; no occupants",
 "cve": [],
 "taxonomy": {
  "owasp_asi": [
   "ASI08"
  ],
  "mitre_atlas": [],
  "labels": [
   "no_adversary",
   "detection_without_action",
   "severe_weather",
   "software_recall",
   "fleet_wide",
   "physical_world"
  ]
 },
 "defense_present": "flooded-lane detection",
 "defense_bypassed": true,
 "fix_shipped": "San Antonio operations suspended; voluntary NHTSA recall of up to 3,791 vehicles",
 "primary_sources": [
  "https://abc7news.com/post/waymo-recalls-3500-vehicles-incident-involving-robotaxi-entering-flooded-texas-road-company-says/19093361/",
  "https://incidentdatabase.ai/cite/1544"
 ],
 "verified_quote": "\"On higher speed roadways, the Waymo AV may slow but not stop in response to detecting a potentially untraversable flooded lane,\" NHTSA recall documents read.",
 "confidence": "high",
 "notes": "The recall language is the cleanest statement of a recurring agent-design fault in this corpus: the system correctly perceived a hazard and its policy converted that perception into caution rather than refusal. Detection without a hard stop is not a safety control. Same gap as the Zoox door collision and the Jiushi drag, here written down by the regulator. AI Incident Database incident 1544.",
 "risk_category": "reliability",
 "risk_secondary": [],
 "risk_subcategory": "Destructive or irreversible action",
 "risk_sub_secondary": [
  "Goal drift & runaway loops"
 ],
 "ai_entity": "non_generative_autonomy",
 "agency": "agent_acted",
 "agency_debatable": false,
 "agency_reason": "the vehicle drove into the floodwater it had detected",
 "vector_family": "none_autonomous",
 "vector_detail": "none_autonomous_action",
 "guardrail_kind": [
  "unknown"
 ],
 "guardrail_outcome": "silent",
 "xrefs": {
  "aiid": [
   1544
  ],
  "atlas": [],
  "cve": [],
  "ghsa": []
 },
 "primary_asi": "ASI08",
 "agent_framework": "robotaxi_stack",
 "model_provider": "none",
 "model_name": "",
 "detection_mechanism": "unknown",
 "tool_access": "unknown",
 "financial_loss_band": "unknown",
 "eai_category": "unsafe_actuation",
 "eai_domain": "agent_behaviour",
 "eai_secondary": [],
 "eai_reason": "subcategory: Destructive or irreversible action",
 "asi_curated": [],
 "asi_scope": "in_scope",
 "asi_provenance": "rule",
 "asi_reason": "ASI08 (fleet fan-out in a non-generative stack; other mechanisms out of scope)",
 "submitted_by": "EAI Internal"
}