# NTSB investigations, 2011: Near midair/TCAS alert/loss of separation

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 OPS12IA122](https://openairdocs.org/ntsb/OPS12IA122.md): Kahului, HI · Incident · No injuries · Incident investigation · Final report · Nov 3, 2011 · No damage
  > Failure of the Honolulu Control Facility controller to issue control instructions necessary to establish and maintain required separation between all three aircraft. Contributing to the losses of separation was inadequate training provided to controllers…
- [NTSB OPS12IA041](https://openairdocs.org/ntsb/OPS12IA041.md): Cessna 172S · Daytona Beach, FL · Incident · No injuries · Incident investigation · Final report · Oct 15, 2011 · N488ER · 2 aircraft · No damage
  > The departing pilot's incorrect runway selection and non-compliance with an air traffic control clearance. Contributing to the incident was the air traffic controller's inadequate monitoring of the departing aircraft to ensure that the pilot complied with the…
- [NTSB OPS11IA686](https://openairdocs.org/ntsb/OPS11IA686.md): Mcdonnell Douglas DC-9-83(MD-83) · Apache Junction, AZ · Incident · No injuries · Incident investigation · Final report · Jun 27, 2011 · N416NV · No damage
  > The failure of the pilots of both airplanes to see and avoid each other and to maneuver as advised by the air traffic controller in time to prevent the conflict that resulted in the reported near midair collision.
- [NTSB OPS11IA653](https://openairdocs.org/ntsb/OPS11IA653.md): Beech 1900C · Fairbanks, AK · Incident · No injuries · Incident investigation · Final report · Jun 14, 2011 · N121WV · 2 aircraft · No damage
  > Inadequate air traffic control actions that failed to establish and maintain required separation between the two airplanes. Contributing to the incident was inexperience on the part of the local controller, inadequate oversight by the tower…
- [NTSB OPS11IA499](https://openairdocs.org/ntsb/OPS11IA499.md): Boeing 737 · Camp Springs, MD · Incident · No injuries · Incident investigation · Final report · Apr 18, 2011 · 2 aircraft · No damage
  > The misapplication of wake turbulence and instrument flight rules (IFR) separation criteria by air traffic controllers.
- [NTSB OPS11IA476](https://openairdocs.org/ntsb/OPS11IA476.md): Beech 400 · Midland, TX · Incident · No injuries · Incident investigation · Final report · Apr 13, 2011 · Military · 2 aircraft · No damage
  > Inadequate planning and control instructions issued to the pilots involved by the trainee controller operating the local control position and inadequate supervision by the instructor responsible for the position.
- [NTSB OPS11IA428](https://openairdocs.org/ntsb/OPS11IA428.md): Cirrus Design SR22 · Orlando, FL · Incident · No injuries · Incident investigation · Final report · Mar 27, 2011 · N1487C · 2 aircraft · No damage
  > The air traffic controllers’ application of inappropriate separation between the B737 and the Cirrus and their inappropriate use of airborne civilian aircraft for observation of other airborne aircraft. Contributing to the incident was the crew of the B737's…

## 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 year(c."eventDate") = 2011
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '260' 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/260/sequence?year=2011

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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.