# NTSB investigations: Allison 250 SER 250HP, 1969

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 ANC70A0012](https://openairdocs.org/ntsb/ANC70A0012.md): Hiller Acft FH1100 · Fairbanks, AK · Accident · No injuries · Closed · Aug 3, 1969 · N421FH · Substantial damage
- [NTSB ANC70A0004](https://openairdocs.org/ntsb/ANC70A0004.md): Bell 206A · Barrow, AK · Accident · No injuries · Closed · Jul 13, 1969 · N7865S · Substantial damage
- [NTSB ANC70A0002](https://openairdocs.org/ntsb/ANC70A0002.md): Hiller Acft FH1100 · Mcgrath, AK · Accident · No injuries · Closed · Jul 3, 1969 · N748FH · Substantial damage
- [NTSB SEA70D0082](https://openairdocs.org/ntsb/SEA70D0082.md): Bell 206A · Twin Lake, Canada · Accident · No injuries · Closed · Jun 14, 1969 · N6280N · 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") = 1969
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03002', '03003'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03002&year=1969

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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.