# NTSB investigations: Bell UH-1H, NM

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 CEN22FA317](https://openairdocs.org/ntsb/CEN22FA317.md): Bell UH-1H · Chapelle, NM · Accident · 4 fatal · Class 3 · Field · Final report · Jul 17, 2022 · N911SZ · Destroyed
  > The total loss of engine power due to the fatigue failure of the starter-generator input (zerol) gear which failed due to poor maintenance. Contributing to the accident was the unsuccessful autorotation complicated by the setting sun and high density altitude.
- [NTSB CEN18FA078](https://openairdocs.org/ntsb/CEN18FA078.md): Bell UH-1H · Raton, NM · Accident · 5 fatal · Field investigation · Final report · Jan 18, 2018 · N658H · Destroyed
  > The pilot's failure to maintain adequate altitude above mountainous terrain during cruise flight in dark night conditions, which resulted in controlled flight into terrain.
- [NTSB DEN07LA024](https://openairdocs.org/ntsb/DEN07LA024.md): Bell UH-1H · Melrose, NM · Accident · Serious injuries · Limited investigation · Final report · Nov 13, 2006 · N24CF · Substantial damage
  > the in-flight failure and separation of both tail rotor blades. Contributing factors in this accident were the check pilot interferring with the controls and his failure to relinquish control to the pilot-in-command.
- [NTSB DEN01LA077](https://openairdocs.org/ntsb/DEN01LA077.md): Bell UH-1H · Zuni, NM · Accident · No injuries · Limited investigation · Final report · Mar 25, 2001 · N56CF · Substantial damage
  > a hard landing due to the pilot's failure to maintain aircraft control during autorotation/flare. A factor was the total loss of engine power due to mechanical failure.

## 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" = 'NM' 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 ('1181407'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1181407&state=NM

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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.
