# NTSB investigations, 2020: Midair collision

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 WPR21LA040](https://openairdocs.org/ntsb/WPR21LA040.md): Schleicher ASW20C · Clayton, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Nov 7, 2020 · N18MA · 2 aircraft · Substantial damage
  > The failure of both pilots of each glider to see an avoid one another while maneuvering, which resulted in a mid-air collision.
- [NTSB CEN21FA043](https://openairdocs.org/ntsb/CEN21FA043.md): Beech J35 · Fredericksburg, TX · Accident · 1 fatal · Class 3 · Field · Final report · Nov 6, 2020 · N617Q · 2 aircraft · Destroyed
  > The pilot of the J35’s failure to maintain clearance from the M35, which resulted in a midair collision and the J35 pilot’s subsequent loss of control and impact with terrain.
- [NTSB CEN21LA040](https://openairdocs.org/ntsb/CEN21LA040.md): Piper J3C · Weslaco, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Nov 3, 2020 · N87715 · 2 aircraft · Substantial damage
  > The pilot of N87715 inadvertently allowed his airplane to drift right of the runway during the climb after a touch-and-go landing, and the pilot of N6463H did not maintain adequate separation from the other airplane during his go-around. Contributing to the…
- [NTSB GAA21WA175](https://openairdocs.org/ntsb/GAA21WA175.md): Pioneer 300 · Loches, France · Accident · 5 fatal · Class 5 · Foreign · Oct 10, 2020 · 37AHH · 2 aircraft
- [NTSB CEN20LA419](https://openairdocs.org/ntsb/CEN20LA419.md): Cessna 172S · San Marcos, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Sep 25, 2020 · N108VK · 2 aircraft · Substantial damage
  > The F1 pilot’s failure to see and avoid the lower altitude Cessna while on final approach for landing. Contributing to the accident were the restrictions to pilot visibility inherent to low- and high-wing airplanes, and both pilots’ failure to recognize the…
- [NTSB ANC20LA085](https://openairdocs.org/ntsb/ANC20LA085.md): Cessna A185 · Fairbanks, AK · Accident · 2 fatal · Class 3 · Limited · Final report · Aug 27, 2020 · N714KH · 2 aircraft · Destroyed
  > The PA-18 pilot’s failure to see and avoid the Cessna 185 as it was landing. Contributing to the accident was the PA-18 pilot’s failure to hear the traffic advisory provided by the air traffic control tower.
- [NTSB ANC20LA074](https://openairdocs.org/ntsb/ANC20LA074.md): De Havilland DHC-2 · Soldotna, AK · Accident · 7 fatal · Class 3 · Limited · Final report · Jul 31, 2020 · N4982U · 2 aircraft · Substantial damage
  > The failure of both pilots to see and avoid the other airplane. Contributing to the accident were (1) the PA-12 pilot’s decision to fly with a known severe vision deficiency that had resulted in denial of his most recent application for medical certification…
- [NTSB WPR20LA246](https://openairdocs.org/ntsb/WPR20LA246.md): Air Tractor AT802 · Elgin, NV · Accident · 2 fatal · Class 3 · Limited · Final report · Jul 30, 2020 · N8510M · 2 aircraft · Destroyed
  > The trailing pilot’s failure to maintain separation from the lead airplane during a fire retardant deployment flight, which resulted in the trailing airplane flying through a plume of retardant and the trailing pilot’s subsequent loss of visibility that led…
- [NTSB WPR20FA206](https://openairdocs.org/ntsb/WPR20FA206.md): Cessna TU206 · Coeur d'Alene, ID · Accident · 8 fatal · Class 3 · Field · Final report · Jul 5, 2020 · N6373U · 2 aircraft · Destroyed
  > The failure of the pilots of both airplanes to see and avoid the other airplane.
- [NTSB WPR20WA091](https://openairdocs.org/ntsb/WPR20WA091.md): Piper PA44 · Mangalore, Australia · Accident · 4 fatal · Foreign investigation · Feb 19, 2020 · VH-JQF · 2 aircraft · Destroyed
- [NTSB DCA20IA081](https://openairdocs.org/ntsb/DCA20IA081.md): Aerospatiale AS350BA · Johnson Valley, CA · Incident · No injuries · Class 3 · Incident · Final report · Feb 6, 2020 · N611TC · 2 aircraft · Minor damage
  > the failure of the small UAS remote pilot to give way to the helicopter, resulting in an inflight collision. Contributing to the incident was the sUAS remote pilot’s failure to assess and mitigate the risks of operations in close proximity to other aircraft.…

## 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") = 2020
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '250' 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/250/sequence?year=2020

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