# NTSB investigations: Allison 250 SER 250HP, 1973

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 NYC74AN046](https://openairdocs.org/ntsb/NYC74AN046.md): Bell 206A · Webster, PA · Accident · 1 fatal · Closed · Nov 20, 1973 · N461NC · 2 aircraft · Destroyed
- [NTSB SEA74FYG13](https://openairdocs.org/ntsb/SEA74FYG13.md): Hughes 369HS · Packwood, WA · Accident · Serious injuries · Closed · Aug 26, 1973 · N9043F · Destroyed
- [NTSB ANC74AA023](https://openairdocs.org/ntsb/ANC74AA023.md): Hiller Acft FH1100 · Umiat, AK · Accident · No injuries · Closed · Aug 14, 1973 · N546FH · Substantial damage
- [NTSB SEA74DYI01](https://openairdocs.org/ntsb/SEA74DYI01.md): Hiller FH1100 · Cave Jctn, OR · Accident · No injuries · Closed · Jul 9, 1973 · N427FH · Substantial damage
- [NTSB ANC74FAG02](https://openairdocs.org/ntsb/ANC74FAG02.md): Hiller Acft FH1100 · Anchorage, AK · Accident · No injuries · Closed · Jul 6, 1973 · N5052F · 2 aircraft · Substantial damage
- [NTSB NYC73IN142](https://openairdocs.org/ntsb/NYC73IN142.md): Bell 206B · White Plains, NY · Incident · No injuries · Closed · May 14, 1973 · N30TA · Minor 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") = 1973
  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=1973

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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.