# NTSB investigations, WI: 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 CHI06FA077](https://openairdocs.org/ntsb/CHI06FA077.md): Short Brothers SD-360-300 · Watertown, WI · Accident · 3 fatal · Field investigation · Final report · Feb 5, 2006 · N3735W · 2 aircraft · Destroyed
  > The other airplane's flight crew failure to maintain clearance while maneuvering during formation flight. Contributing to the accident was the decision of both flight crews to fly in formation.
- [NTSB CHI04LA104](https://openairdocs.org/ntsb/CHI04LA104.md): Cessna 172M · New Munster, WI · Accident · No injuries · Limited investigation · Final report · Apr 10, 2004 · N73213 · 2 aircraft · Substantial damage
  > Visual lookout not maintained by the pilots of both airplanes.
- [NTSB CHI98FA356](https://openairdocs.org/ntsb/CHI98FA356.md): Cessna 310R · Seymour Twp., WI · Accident · 2 fatal · Field investigation · Final report · Sep 1, 1998 · N5056J · 2 aircraft · Destroyed
  > the pilots of both airplanes not maintaining visual separation from the other airplane.
- [NTSB CHI97FA084](https://openairdocs.org/ntsb/CHI97FA084.md): Douglas DC-3C/BT-67R · Newton, WI · Accident · 4 fatal · Field investigation · Final report · Mar 15, 1997 · TZ389 · 2 aircraft · Destroyed
  > failure of the Beech A36 pilot to maintain clearance from the modified Douglas DC-3, while positioning the A36 for photography of the DC-3.
- [NTSB CHI95FA126](https://openairdocs.org/ntsb/CHI95FA126.md): Cessna 150M · Oshkosh, WI · Accident · 4 fatal · Field investigation · Final report · Apr 14, 1995 · N45457 · 2 aircraft · Destroyed
  > Inadequate visual lookout by the pilot of the Beech V35B, resulting in his failure to see-and-avoid the Cessna 150, which was ahead and below him on final approach; and failure of the tower controller to provide adequate service (flight advisories and landing…
- [NTSB CHI91FA088](https://openairdocs.org/ntsb/CHI91FA088.md): Piper PA-28-140 · Osceola, WI · Accident · 7 fatal · Field investigation · Final report · Feb 3, 1991 · N4676R · 2 aircraft · Destroyed
  > Failure of the pilots in both aircraft to seeing-and-avoid the other airplane.
- [NTSB CHI90LA201](https://openairdocs.org/ntsb/CHI90LA201.md): Bryant Rowland T-18 · Fisk, WI · Accident · No injuries · Limited investigation · Final report · Jul 30, 1990 · N66BR · 2 aircraft · Substantial damage
  > The pilot-in-command of the thorp T-18'S failure to maintain a sufficient visual lookout to avoid a collision with the Cessna 170A. Contributing was the limited visibility forward and to the right in the thorp T-18.
- [NTSB CHI85FA185](https://openairdocs.org/ntsb/CHI85FA185.md): Beech B35 · Sussex, WI · Accident · No injuries · Field investigation · Final report · May 2, 1985 · N5182C · 2 aircraft · Substantial damage
  > A student plt was on his 1st solo x-country flt in a Cessna 152, N6464L. After taking off at the brookfield arpt (elev 850 ft), he had climbed to 2000 ft MSL & was heading 350 deg when he saw a Beech B35 (bonanza), N5182C, converging from his right. The…
- [NTSB CHI85FA176](https://openairdocs.org/ntsb/CHI85FA176.md): Cessna R182 · Prairie Dusac, WI · Accident · 1 fatal · Field investigation · Final report · Apr 26, 1985 · N4707T · 2 aircraft · Substantial damage
  > This midair collision occurred approx 2 mi NE of sauk-Prairie apt. The pilots of the Cessna were in a climbing right departure turn at approx 1600 ft MSL heading approx 120 deg when a collsion occurred with a Piper heading approx 270 deg and descending. One…
- [NTSB CHI82FA290](https://openairdocs.org/ntsb/CHI82FA290.md): Starduster II · Oshkosh, WI · Accident · 3 fatal · Field investigation · Final report · Aug 3, 1982 · N9JR · 2 aircraft · Destroyed
  > Both acft were operating in the fly-by (no radio) pattern during the annual eaa convention. According to participant records both plts had received fly-by pattern briefings. Both acft were observed to be in the southern most portion of the upwind leg of the…

## 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" = 'WI' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 270)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=270&state=WI

---
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.