# NTSB investigations, PA: 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 IAD00LA027](https://openairdocs.org/ntsb/IAD00LA027.md): Bellanca 8KCAB · Erwinna, PA · Accident · Minor injuries · Limited investigation · Final report · Mar 18, 2000 · N2520Z · 2 aircraft · Substantial damage
  > the improper entry into the traffic pattern by the pilot of the Piper airplane and the inadequate lookout by the pilots in both airplanes. A factor in the accident was that radio communication was not possible because the Piper was not so equipped, and the…
- [NTSB IAD99FA041](https://openairdocs.org/ntsb/IAD99FA041.md): Cessna 305A · Hilltown, PA · Accident · 3 fatal · Field investigation · Final report · May 1, 1999 · N5171G · 2 aircraft · Destroyed
  > The inadequate lookout of both pilots, and the pilot of the other aircraft.
- [NTSB NYC95LA145](https://openairdocs.org/ntsb/NYC95LA145.md): Mooney M-20C · Monogahela, PA · Accident · Serious injuries · Limited investigation · Final report · Jul 9, 1995 · N2763W · 2 aircraft · Destroyed
  > The failure of the pilots of the monney M20C, N2763W, and the Piper PA-28, N7416R, to see and avoid each other.
- [NTSB DCA91MA031](https://openairdocs.org/ntsb/DCA91MA031.md): Bell 412SP · Merion, PA · Accident · 7 fatal · Class 1 · Major · Final report · Apr 4, 1991 · N78S · 2 aircraft · Destroyed
  > The poor judgement by the captain of the airplane to permit the in-flight inspection after he had determined to the best of his ability that the nose landing gear was fully extended, the poor judgment of the captain of the helicopter to conduct the…
- [NTSB NYC89FA177](https://openairdocs.org/ntsb/NYC89FA177.md): Beech A36 · Salisbury Twp, PA · Accident · 7 fatal · Field investigation · Final report · Jul 30, 1989 · N2063V · 2 aircraft · Destroyed
  > The failure of both pilots to see and avoid each other. A contributing factor to the accident was that neither pilot was heard over the radio announcing their position and intentions.
- [NTSB NYC88LA125](https://openairdocs.org/ntsb/NYC88LA125.md): Schleicher ASW-20 · Fairfield, PA · Accident · 1 fatal · Limited investigation · Final report · Apr 9, 1988 · N34JH · 2 aircraft · Destroyed
  > Failure of the pilot-in-command of N34JH to see and avoid N311DP.
- [NTSB NYC86FA114](https://openairdocs.org/ntsb/NYC86FA114.md): Glaser-Dirks DIRK-DG-400 · Julian, PA · Accident · 1 fatal · Field investigation · Final report · Apr 28, 1986 · N40MS · 2 aircraft · Destroyed
  > The plt of N686U reported he was established in weak thermal at an alt of aprx 2500 AGL when two other gliders were seen. One at aprx the same alt and one below his alt. He continued to state that the glider which was at his alt passed very close to but…

## 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" = 'PA' 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=PA

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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.