# NTSB investigations: Hiller UH-12E, UT

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 SEA91TL#02](https://openairdocs.org/ntsb/SEA91TL%2302.md): Hiller-Soloy UH-12E · Vernal, UT · Accident · No injuries · Class 3 · Final report · Sep 18, 1991 · N7173S · Destroyed
- [NTSB DEN88LA046](https://openairdocs.org/ntsb/DEN88LA046.md): Hiller UH-12E · Vernal, UT · Accident · No injuries · Limited investigation · Final report · Jan 2, 1988 · N400AH · Substantial damage
  > The commercial plt and two passengers were surveying a road route in mountainous terrain. At cruise, the pilot noticed a drop in manifold pressure, followed by a loss of oil pressure. The plt reported that the engine quit. An autorotation to a snow covered…
- [NTSB DEN86LA016](https://openairdocs.org/ntsb/DEN86LA016.md): Hiller UH-12E · Vernal, UT · Accident · No injuries · Limited investigation · Final report · Nov 1, 1985 · N400AH · Substantial damage
  > The plt stated he had just departed a site located on top of a mountain, which is approximately 12,200 ft MSL. The pilot said 30 seconds later, the helicopter lost partial power. Requiring him to make a force landing. The inspection of the turbocharger…
- [NTSB DEN81FA009](https://openairdocs.org/ntsb/DEN81FA009.md): Hiller Acft 12E · Blanding, UT · Accident · No injuries · Closed · Nov 5, 1980 · N57972 · Substantial damage
- [NTSB DEN73DTM31](https://openairdocs.org/ntsb/DEN73DTM31.md): Hiller Acft UH-12E · Richfield, UT · Accident · No injuries · Closed · Jun 17, 1973 · N5332V · Destroyed
- [NTSB DEN67A0058](https://openairdocs.org/ntsb/DEN67A0058.md): Hiller UH-12E · Ogden, UT · Accident · No injuries · Closed · Mar 27, 1967 · N5345V · Substantial damage
- [NTSB DEN67A0008](https://openairdocs.org/ntsb/DEN67A0008.md): Hiller UH-12E · Escalante, UT · Accident · Serious injuries · Closed · Jul 21, 1966 · N5360V · Destroyed

## 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" = 'UT' AND c."eventCountry" = 'USA'
  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=UT

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