# NTSB investigations: Jacobs L4 /R755-7, 1997

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 MIA97LA222](https://openairdocs.org/ntsb/MIA97LA222.md): Waco YMF5 · Lake Buena Vist, FL · Accident · No injuries · Limited investigation · Final report · Jul 28, 1997 · N14128 · Substantial damage
  > failure of maintenance personnel to follow installation procedures pertaining to the torque of the propeller retention nut, which resulted in a loose propeller retention nut, subsequent fatigue failure of the crankshaft, and loss of engine power. The lack of…
- [NTSB ATL97FA095](https://openairdocs.org/ntsb/ATL97FA095.md): Boeing Stearman B75N1 · Locust Grove, GA · Accident · 1 fatal · Field investigation · Final report · Jul 2, 1997 · N450GC · Destroyed
  > The inadvertent stall encountered by the pilot after experiencing an in-flight cylinder head separation.
- [NTSB MIA97LA058](https://openairdocs.org/ntsb/MIA97LA058.md): Waco WMF-5 · Kissimmee, FL · Accident · No injuries · Limited investigation · Final report · Jan 1, 1997 · N14128 · Substantial damage
  > the pilot's failure to maintain direction control of the airplane after applying the brakes. A factor was the pilot's lack of familiarity with this make and model airplane.

## 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") = 1997
  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=1997

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