# NTSB investigations: Hiller H-23D, 1981

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 SEA81DYE31](https://openairdocs.org/ntsb/SEA81DYE31.md): Hiller UN-12D · Castle Rock, WA · Accident · Minor injuries · Closed · Jun 10, 1981 · N62377 · Destroyed
- [NTSB CHI81FCA05](https://openairdocs.org/ntsb/CHI81FCA05.md): Hiller UH-12D · Cahokia, IL · Accident · No injuries · Closed · Apr 17, 1981 · N2MJ · Substantial damage
- [NTSB MIA81FA053](https://openairdocs.org/ntsb/MIA81FA053.md): Hiller UH-12D · Miami Beach, FL · Accident · Minor injuries · Closed · Mar 20, 1981 · N62376 · Destroyed
- [NTSB MIA81FKT31](https://openairdocs.org/ntsb/MIA81FKT31.md): Hiller Acft UH-12D · Miami, FL · Accident · No injuries · Closed · Mar 8, 1981 · N62362 · Substantial damage

## 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") = 1981
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4360120'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4360120&year=1981

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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.