# NTSB investigations: Hiller UH-12B, MI

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 CHI87LA045](https://openairdocs.org/ntsb/CHI87LA045.md): Hiller UH-12B · Capac, MI · Accident · No injuries · Limited investigation · Final report · Nov 29, 1986 · N48209 · Substantial damage
  > Ten minutes after takeoff and just prior to letdown from 350 feet AGL a main rotor blade drag strut failed due to progressive fatigue through a threaded portion of the strut. Only partial control of the helicopter was possible after the failure. The pilot…
- [NTSB CHI82DA332](https://openairdocs.org/ntsb/CHI82DA332.md): Hiller 12B · Detroit, MI · Accident · No injuries · Final report · Sep 2, 1982 · N48209 · Substantial damage
  > The plt entered the Detroit city arpt area from the west with winds from 280 degrees at 18K gusting to 23K. At 150-175 ft AGL the plt added power in order to reduce his closure rate, traveling southeasterly at the time. The acft then started yawing to the…
- [NTSB CHI77FEM43](https://openairdocs.org/ntsb/CHI77FEM43.md): Hiller UH-12B · Carrollton, MI · Accident · No injuries · Closed · Sep 26, 1977 · N94735 · Destroyed
- [NTSB CHI67A0087](https://openairdocs.org/ntsb/CHI67A0087.md): Hiller UH-12B · Fairhaven, MI · Accident · No injuries · Closed · Jan 15, 1967 · N5304V · 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" = 'MI' 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 ('4360110'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4360110&state=MI

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.