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

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 FTW81FPJ02](https://openairdocs.org/ntsb/FTW81FPJ02.md): Waco YPF-7 · Oklahoma City, OK · Accident · No injuries · Closed · Oct 19, 1980 · N32077 · Substantial damage
- [NTSB FTW76FPM08](https://openairdocs.org/ntsb/FTW76FPM08.md): Boeing A75N1 · Hartsharne, OK · Accident · Minor injuries · Closed · Sep 21, 1975 · N49709 · Substantial damage
- [NTSB FTW73FPM10](https://openairdocs.org/ntsb/FTW73FPM10.md): Cessna 195A · Tulsa, OK · Accident · No injuries · Closed · May 18, 1973 · N4343N · Substantial damage
- [NTSB FTW67D0146](https://openairdocs.org/ntsb/FTW67D0146.md): Boeing E75N1 · Altus, OK · Accident · No injuries · Closed · Aug 8, 1966 · N5268N · Substantial damage
- [NTSB UNK64X2057](https://openairdocs.org/ntsb/UNK64X2057.md): Waco Ykcs · Okla City, OK · Accident · No injuries · Closed · May 31, 1964 · N15232 · Substantial damage

## 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" = 'OK' 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 ('35003'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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

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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.