# NTSB investigations: Jacobs L4 /R755-7, 1991

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 LAX92LA052](https://openairdocs.org/ntsb/LAX92LA052.md): Cessna 195A · Camarillo, CA · Accident · No injuries · Limited investigation · Final report · Nov 5, 1991 · N195MD · Substantial damage
  > The failure of the pilot to maintain directional control during the landing ground roll.
- [NTSB ATL91LA141](https://openairdocs.org/ntsb/ATL91LA141.md): Maridon Starduster TOO · Locust Grove, GA · Accident · Serious injuries · Limited investigation · Final report · Jul 24, 1991 · N3263 · Substantial damage
  > Fuel exhaustion which resulted from the failure of the pilots to refuel the airplane. A factor was the local pilot's having become lost.
- [NTSB CHI91LA190](https://openairdocs.org/ntsb/CHI91LA190.md): Cessna 195 · Detroit, MI · Accident · No injuries · Limited investigation · Final report · Jun 13, 1991 · N4351V · Substantial damage
  > Failure to maintain directional control, and inadequate aircraft preflight. A factor related to the accident is the instructor pilot's lack of experience in the type aircraft.

## 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 year(c."eventDate") = 1991
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('35003'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=35003&year=1991

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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.