# NTSB investigations: Jacobs R755B series, 1999

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 CHI99LA199](https://openairdocs.org/ntsb/CHI99LA199.md): Boeing Stearman B75N1 · Kalamazoo, MI · Accident · No injuries · Limited investigation · Final report · Jun 26, 1999 · N2PP · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during landing. A factor was the variable wind condition.
- [NTSB FTW99LA156](https://openairdocs.org/ntsb/FTW99LA156.md): Cessna 195 · Conroe, TX · Accident · No injuries · Limited investigation · Final report · May 31, 1999 · N2151C · Substantial damage
  > The fatigue fracture of the left main landing gear spring at the clamping mechanism, as a result of fretting.
- [NTSB MIA99LA117](https://openairdocs.org/ntsb/MIA99LA117.md): Waco YMF-5 · Boca Raton, FL · Accident · Serious injuries · Limited investigation · Final report · Apr 2, 1999 · N820MM · Substantial damage
  > The pilot's failure to select a suitable forced landing site following a partial loss of engine power due to failed cylinder holdddown studs, and the subsequent collision with trees. A factor in the accident was the reduced forward visibility from the dual…

## 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") = 1999
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('35007'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=35007&year=1999

---
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.