# NTSB investigations: Hiller UH-12E: Unknown or undetermined

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 WPR21LA354](https://openairdocs.org/ntsb/WPR21LA354.md): Hiller UH-12E · Bovill, ID · Accident · No injuries · Class 3 · Limited · Final report · Sep 23, 2021 · N5334V · Substantial damage
  > A loss of helicopter control for undetermined reasons based on the available evidence for this accident.
- [NTSB WPR15LA168](https://openairdocs.org/ntsb/WPR15LA168.md): Hiller UH 12E · Wasco, CA · Accident · 1 fatal · Limited investigation · Final report · May 27, 2015 · N138HA · Substantial damage
  > An in-flight impact with terrain for reasons that could not be determined based on available evidence.
- [NTSB CEN10CA362](https://openairdocs.org/ntsb/CEN10CA362.md): Hiller UH-12E · Grand Junction, CO · Accident · Minor injuries · Data collection · Final report · Jun 25, 2010 · N9754C · Substantial damage
  > The total loss of engine power for undetermined reasons.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4360122', '4360137')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '000' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/000/sequence?model=4360122

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