# NTSB investigations: Allison 250 SER 400HP, 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 IAD97FA032](https://openairdocs.org/ntsb/IAD97FA032.md): Mbb BO-105CBS · Penn Yan, NY · Accident · 3 fatal · Field investigation · Final report · Dec 13, 1996 · N90750 · Destroyed
  > the pilot's failure to maintain altitude/clearance from the terrain. Factors relating to the accident were: the pilot's diverted attention to the GPS, darkness, low ceiling, rising terrain, and high wind condition.
- [NTSB LAX97LA030](https://openairdocs.org/ntsb/LAX97LA030.md): Bell 206B · Supai, AZ · Accident · Minor injuries · Limited investigation · Final report · Nov 1, 1996 · N90144 · Destroyed
  > improper routing of the external cargo hoist cable (over helicopter skid), which resulted in lateral imbalance and roll-over of the helicopter, as weight on the cable became effective.
- [NTSB LAX96LA346](https://openairdocs.org/ntsb/LAX96LA346.md): Bell 206B · Fillmore, CA · Accident · No injuries · Limited investigation · Final report · Sep 30, 1996 · N59576 · Substantial damage
  > the flight instructor's inadequate supervision and delay in taking remedial action to stop the aircraft's lateral movement, which resulted in a dynamic rollover after touchdown.
- [NTSB SEA96LA205](https://openairdocs.org/ntsb/SEA96LA205.md): Bell 206B · Greybull, WY · Accident · No injuries · Limited investigation · Final report · Aug 23, 1996 · N206FT · Substantial damage
  > the pilot's misjudged recovery (remedial action) from a simulated autorotation demonstration.
- [NTSB NYC96LA167](https://openairdocs.org/ntsb/NYC96LA167.md): Bell 206B · Starks, ME · Accident · No injuries · Limited investigation · Final report · Aug 13, 1996 · N9913K · Substantial damage
  > the pilot's improper decision to operate at slow airspeed, and close to the critical relative wind azimuth area in gusty, variable winds, which resulted in an inadvertent loss of tail rotor effectiveness. The gusty crosswind and lack of a suitable terrain for…
- [NTSB ANC96LA111](https://openairdocs.org/ntsb/ANC96LA111.md): McDonnell Douglas MD369D · Healy, AK · Accident · Minor injuries · Limited investigation · Final report · Aug 4, 1996 · N58269 · 2 aircraft · No damage
  > The inadequate visual outlook by the pilots of both aircraft, and their failure to see and avoid the other aircraft. A factor associated with the accident was sunglare affecting the helicopter pilot's vision.
- [NTSB ANC96LA097](https://openairdocs.org/ntsb/ANC96LA097.md): Bell 206B · Juneau, AK · Accident · No injuries · Limited investigation · Final report · Jul 8, 1996 · N2761F · Substantial damage
  > The pilot's failure to maintain proper alignment while lifting the helicopter to a hover and inducing a dynamic roll to avoid striking a passenger.

## 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 ('03013', '03012'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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