# NTSB investigations: Pratt & Whitney R-1830 series, 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 DEN91LA102](https://openairdocs.org/ntsb/DEN91LA102.md): Douglas DC-3C · Albuquerque, NM · Accident · No injuries · Limited investigation · Final report · Jul 20, 1991 · N96H · Substantial damage
  > The failure of the right main landing gear tire.
- [NTSB DEN86LA102](https://openairdocs.org/ntsb/DEN86LA102.md): Douglas C-47 · Steins, NM · Accident · No injuries · Limited investigation · Final report · Mar 23, 1986 · N37AP · Substantial damage
  > While en route, the left eng of the C-47 lost partial pwr as a result of a cracked cylinder. The crew stated the left eng was shut down and additional pwr was applied to the right eng to compensate for the increasing rate of descent. The crew stated a short…

## 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.engine_model_code IN ('52020'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52020&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.