# NTSB investigations: Allison 250 SER 400HP, 1984

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 LAX84LA488](https://openairdocs.org/ntsb/LAX84LA488.md): Bell 206B · Paso Robles, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 20, 1984 · N2246W · Destroyed
  > Plt stated that after receiving a special VFR clearence he took off to spray a nearby field. He continued to state that he 'made a couple of circuits over the field, observed the telephone wires and began spraying. After performing 2 or 3 passes I hit some…
- [NTSB FTW84LA378](https://openairdocs.org/ntsb/FTW84LA378.md): Bell 206B · Houma, LA · Accident · Minor injuries · Limited investigation · Final report · Sep 4, 1984 · N4830 · Destroyed
  > The helicopter was on a cargo, non scheduled air taxi flight when the plt smelled smoke. A precautionary landing was made on a beach after which the acft was destroyed by fire.
- [NTSB LAX84LA314](https://openairdocs.org/ntsb/LAX84LA314.md): Hughes 369D · Honolulu, HI · Accident · No injuries · Limited investigation · Final report · May 25, 1984 · N211EH · Substantial damage
  > The helicopter experienced a tail rotor failure shortly after departing the airport on a VFR local sling loading flt. The plt stated that, 'at approx 500 ft asl on climb out experienced sudden, severe vibration. Made a 180 degree turn to return to airport &…

## 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") = 1984
  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=1984

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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.