# NTSB investigations: Allison 250 SER 250HP, 1996

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 SEA97LA029](https://openairdocs.org/ntsb/SEA97LA029.md): Bell 206B3 · Ballston, OR · Accident · Serious injuries · Limited investigation · Final report · Nov 19, 1996 · N921RB · Substantial damage
  > a loss of control for undetermined reasons.
- [NTSB LAX97LA039](https://openairdocs.org/ntsb/LAX97LA039.md): McDonnell Douglas 369D · Hana, HI · Accident · No injuries · Limited investigation · Final report · Nov 13, 1996 · N8625F · Substantial damage
  > subsequent failure of the spur adapter gearshaft (SAG), after 'retaining ring to compressor impeller machining' occurred and allowed the SAG to shift aft. The mechanism which induced the ring to impeller machining was not determined. Mountainous terrain in…
- [NTSB ANC96LA154](https://openairdocs.org/ntsb/ANC96LA154.md): Bell 206B · Cantwell, AK · Accident · Serious injuries · Limited investigation · Final report · Sep 13, 1996 · N7982J · Destroyed
  > the pilot's continued VFR flight into instrument meteorological conditions (IMC). The terrain conditions, low ceiling, fog, and whiteout conditions were related factors.
- [NTSB MIA96LA180](https://openairdocs.org/ntsb/MIA96LA180.md): Bell 206B · Pigeon Forge, TN · Accident · Serious injuries · Limited investigation · Final report · Jul 11, 1996 · N999TV · Substantial damage
  > fatigue failure of the engine PC line, induced by damage from improper installation, which resulted in a loss of engine power and an autorotative landing to unsuitable terrain.
- [NTSB SEA96LA070](https://openairdocs.org/ntsb/SEA96LA070.md): Bell 206B · La Grande, OR · Accident · Minor injuries · Limited investigation · Final report · Mar 18, 1996 · N57362 · Substantial damage
  > the pilot's failure to maintain clearance with trees after pulling up from an aerial application spray run.

## 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") = 1996
  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=1996

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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.