# NTSB investigations: Bell Helicopter Textron 206L-1, 1990

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 FTW91LA023](https://openairdocs.org/ntsb/FTW91LA023.md): Bell 206L-1 · W.Cameron 266 · Accident · No injuries · Limited investigation · Final report · Dec 9, 1990 · N5753B · Destroyed
  > Failure of the helicopter's aft landing gear crosstube assembly due to fatigue.
- [NTSB FTW90FA178](https://openairdocs.org/ntsb/FTW90FA178.md): Bell B206LI · Port O'Connor, TX · Accident · 1 fatal · Field investigation · Final report · Sep 12, 1990 · N882BT · Destroyed
  > The pilot's failure to maintain proper altitude. Factors were the pilot's decision to fly into the known adverse weather and the weather/light conditions.
- [NTSB ANC90FA117](https://openairdocs.org/ntsb/ANC90FA117.md): Bell 206L-1 · Farewell, AK · Accident · Serious injuries · Field investigation · Final report · Jul 14, 1990 · N300AH · Substantial damage
  > An internal engine failure due to a thermal fatigue failure of the 1st stage turbine wheel as a result of overtemperature. The high rough/uneven terrain prevented a successful autorotation.
- [NTSB FTW90LA096](https://openairdocs.org/ntsb/FTW90LA096.md): Bell 206L-1 · E. Island Blk15 · Accident · Serious injuries · Limited investigation · Final report · Apr 17, 1990 · N1071A · No damage
  > The loss of continuity in the compressor section of the engine due to a fatique failure of the spur adapter gear shaft.

## 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") = 1990
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1182107'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1182107&year=1990

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