# NTSB investigations, IL: Air traffic event

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB DCA22LA175](https://openairdocs.org/ntsb/DCA22LA175.md): Boeing 777 · Chicago, IL · Accident · No injuries · Class 4 · Limited · Final report · Aug 6, 2022 · A7-BFH · Substantial damage
  > The ground controller’s inappropriate routing of the B777 through a non-movement area, resulting in the airplane’s right wingtip contacting a light pole. Contributing to the accident was the lack of an appropriate display of taxiway BB2 as a restricted…
- [NTSB OPS11IA819](https://openairdocs.org/ntsb/OPS11IA819.md): Embraer EMB-135KL · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Aug 8, 2011 · N377SK · 2 aircraft · No damage
  > The improper air traffic control takeoff clearance issued by the local controller because of his lack of monitoring and lack of awareness of the conflicting arrival airplane.
- [NTSB OPS11IA552](https://openairdocs.org/ntsb/OPS11IA552.md): Embraer EMB-145LR · Chicago, IL · Incident · No injuries · Incident investigation · Final report · May 16, 2011 · N15574 · 2 aircraft · No damage
  > The air traffic controller’s failure to adhere to runway separation requirements and his issuance of an improper takeoff clearance. Contributing to the incident was the controller's failure to recall that there was an arrival inbound to a crossing runway.
- [NTSB OPS08IA011](https://openairdocs.org/ntsb/OPS08IA011.md): Learjet 60 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Jul 21, 2008 · N252RP · 2 aircraft · No damage
  > The LC-10 controller's failure to ensure the appropriate separation between two airplanes operating on runways where flight paths intersect.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'IL' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '100' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/100/sequence?state=IL

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.