# Final NTSB investigations: Hiller UH-12E, ND

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 CHI90DTG02](https://openairdocs.org/ntsb/CHI90DTG02.md): Hiller UH-12-E · Garrison, ND · Accident · No injuries · Final report · Aug 4, 1990 · N133HA · Substantial damage
  > The failure of the helicopter tail rotor control cable. A factor related to the accident was the chafing of the tail rotor control cable.
- [NTSB DEN87LA157](https://openairdocs.org/ntsb/DEN87LA157.md): Hiller UH-12E · Ray, ND · Accident · No injuries · Limited investigation · Final report · Jun 20, 1987 · N68012 · Substantial damage
  > The plt reports that he was departing from an aerial app operating area. He said there was a tree line along a road with an opening and the takeoff was made toward the opening. There were wires across the opening and the poles were obscured by the trees on…
- [NTSB DEN87LA146](https://openairdocs.org/ntsb/DEN87LA146.md): Hiller UH-12E · Grafton, ND · Accident · No injuries · Limited investigation · Final report · Jun 9, 1987 · N8286 · Substantial damage
  > The plt was positioning the helicopter for an aerial application project. Before taking off, he checked the fuel quantity indicator & estimated there was 30 min of fuel on board. The proposed flt was estimated to take 10 min. During flt, the eng lost power &…
- [NTSB DEN83LA204](https://openairdocs.org/ntsb/DEN83LA204.md): Hiller UH-12E · Manning, ND · Accident · No injuries · Limited investigation · Final report · Aug 31, 1983 · N400AH · Substantial damage
  > The acft collided with the ground after an eng failure while stringing power lines. The acft was in a right side low, nose high attitude pulling a wire attached to the left side of the acft. The wind was from the right rear quarter when the loss of power…
- [NTSB DEN81DTG03](https://openairdocs.org/ntsb/DEN81DTG03-201169.md): Hiller Acft UH-12E · Watford City, ND · Accident · No injuries · Closed · Nov 21, 1980 · N5343V · Substantial damage
- [NTSB DEN81FTG01](https://openairdocs.org/ntsb/DEN81FTG01.md): Hiller UH12E · Argusville, ND · Accident · No injuries · Closed · Oct 3, 1980 · N5594N · Substantial 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 c."eventStateOrRegion" = 'ND' AND c."eventCountry" = 'USA'
  AND c."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4360122', '4360137'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4360122&state=ND&status=final

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