# NTSB investigations: Allison 250 SER 400HP, 1972

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 OAK73FJA09](https://openairdocs.org/ntsb/OAK73FJA09.md): Bell 206A · Kaimuki, HI · Accident · No injuries · Closed · Nov 29, 1972 · N1404W · Substantial damage
- [NTSB NYC73AN069](https://openairdocs.org/ntsb/NYC73AN069.md): Bell 206 · Port Washngton, NY · Accident · No injuries · Closed · Nov 20, 1972 · N7941S · Substantial damage
- [NTSB SEA72DYE38](https://openairdocs.org/ntsb/SEA72DYE38.md): Hughes 500 · Longmire, WA · Accident · Minor injuries · Closed · Jun 30, 1972 · N9068F · 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") = 1972
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03013', '03012'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03013&year=1972

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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.