# NTSB investigations: Hiller UH-12E, TX

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 DEN08LA071](https://openairdocs.org/ntsb/DEN08LA071.md): Hiller UH-12E · La Porte, TX · Accident · Minor injuries · Limited investigation · Final report · Apr 4, 2008 · N40289 · Substantial damage
  > The loss of tail rotor effectiveness. Contributing factors were the sudden windshift to a tailwind, and the pilot initiating a hovering turn in ground effect.
- [NTSB DFW06CA013](https://openairdocs.org/ntsb/DFW06CA013.md): Hiller UH-12E · Pasadena, TX · Accident · Serious injuries · Data collection · Final report · Oct 23, 2005 · N909BC · Substantial damage
  > The pilot's inadequate fuel management, which resulted in fuel exhaustion and a loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW97LA131](https://openairdocs.org/ntsb/FTW97LA131.md): Hiller UH-12E · Donna, TX · Accident · Serious injuries · Limited investigation · Final report · Mar 19, 1997 · N136HA · Substantial damage
  > The pilot's failure to maintain clearance with the power lines during an aerial application flight. A factor was the power lines.
- [NTSB FTW92LA007](https://openairdocs.org/ntsb/FTW92LA007.md): Hiller UH-12E · Palacios, TX · Accident · No injuries · Limited investigation · Final report · Oct 11, 1991 · N4029D · Substantial damage
  > The pilot's inadequate preflight.
- [NTSB FTW88DRA05](https://openairdocs.org/ntsb/FTW88DRA05.md): Hiller UH-12E · La Salle, TX · Accident · No injuries · Final report · Apr 4, 1988 · N4029D · Substantial damage
  > Acft was substantially damaged during an emergency autorotation following an engine failure while the acft was completing an aerial application maneuver. Acft touched down tail low and the main rotor blades flexed down and cut off the tail boom. Investigation…
- [NTSB FTW88DRA03](https://openairdocs.org/ntsb/FTW88DRA03.md): Hiller UH-12-D · Bon-Wier, TX · Accident · Serious injuries · Final report · Feb 17, 1988 · N48265 · Destroyed
  > Ground crewmember's failure to follow established procedures for secureing the aircraft to the transport trailer.
- [NTSB FTW86LA167](https://openairdocs.org/ntsb/FTW86LA167.md): Hiller UH-12E · Norias, TX · Accident · No injuries · Limited investigation · Final report · Sep 13, 1986 · N40268 · Substantial damage
  > The commercial plt was engaged in a livestock round-up and attempted to hover over a wire fence. The acft skid caught on the fence causing a loss of acft control and subsequent impact with the terrain.
- [NTSB FTW83LA217](https://openairdocs.org/ntsb/FTW83LA217.md): Hiller UH-12E · Quanah, TX · Accident · No injuries · Limited investigation · Final report · May 3, 1983 · N138HA · Substantial damage
  > The helicopter was being used to search for cattle. As the plt was looking down through some bushes for cattle, the m/r blade hit a powerline wire about 25 ft AGL.
- [NTSB FTW80FPD20](https://openairdocs.org/ntsb/FTW80FPD20.md): Hiller UH-12E · Mineral Wells, TX · Accident · No injuries · Closed · Mar 22, 1980 · N9740C · Substantial damage
- [NTSB FTW79IA054](https://openairdocs.org/ntsb/FTW79IA054.md): Hiller UH-12E · Freer, TX · Incident · No injuries · Closed · Feb 23, 1979 · N40261 · Minor damage
- [NTSB FTW79FQG05](https://openairdocs.org/ntsb/FTW79FQG05.md): Hiller UH-12E · Stratford, TX · Accident · No injuries · Closed · Oct 19, 1978 · N4026S · 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" = 'TX' 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=TX

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