# NTSB investigations: Lycoming R680, AR

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 FTW01LA173](https://openairdocs.org/ntsb/FTW01LA173.md): Curtis-Travel Air 4000 · Morrilton, AR · Accident · No injuries · Limited investigation · Final report · Aug 3, 2001 · N5433 · Substantial damage
  > the pilot's failure to maintain aircraft control during takeoff. Contributing factors were the pilot's lack of experience in the accident airplane, and the rough/uneven runway.
- [NTSB FTW74DPG63](https://openairdocs.org/ntsb/FTW74DPG63.md): Boeing A75N1 · Ulm, AR · Accident · No injuries · Closed · May 23, 1974 · N97X · Substantial damage
- [NTSB FTW73FPG08](https://openairdocs.org/ntsb/FTW73FPG08.md): Stearman E75N1 · Pollard, AR · Accident · Serious injuries · Closed · Jul 31, 1972 · N38979 · Substantial damage
- [NTSB FTW72DPG64](https://openairdocs.org/ntsb/FTW72DPG64.md): Boeing E75N1 · West Helena, AR · Accident · Minor injuries · Closed · Mar 20, 1972 · N75668 · Substantial damage
- [NTSB FTW68F0235](https://openairdocs.org/ntsb/FTW68F0235.md): Boeing E75N1 · Marvell, AR · Accident · Minor injuries · Closed · Sep 9, 1967 · N75650 · Substantial damage
- [NTSB UNK64X3463](https://openairdocs.org/ntsb/UNK64X3463.md): Boeing A75N1 · W Memphis, AR · Accident · No injuries · Closed · Aug 18, 1964 · N52545 · 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" = 'AR' 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 ('41540'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41540&state=AR

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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.