# NTSB investigations: Franklin 6A-350SER, AZ

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 WPR11LA444](https://openairdocs.org/ntsb/WPR11LA444.md): Maule M-4-220C · Show Low, AZ · Accident · Minor injuries · Limited investigation · Final report · Sep 10, 2011 · N40625 · Substantial damage
  > The pilot’s failure to maintain directional control during the landing, which resulted in a ground loop.
- [NTSB LAX92LA040](https://openairdocs.org/ntsb/LAX92LA040.md): Maule M4-220C · Coolidge, AZ · Accident · No injuries · Limited investigation · Final report · Nov 8, 1991 · N40625 · Substantial damage
  > The pilot's failure to maintain directional control of the aircraft during the takeoff ground run due to inadequate compensation for the existing wind conditions. A factor in this accident was the unfavorable wind reported by the pilot.
- [NTSB LAX82DA142](https://openairdocs.org/ntsb/LAX82DA142.md): Maule M-4 · Wickenburg, AZ · Accident · No injuries · Final report · Apr 20, 1982 · N40625 · Substantial damage
  > During landing roll the left wing came up and the aircraft turned sharply to the right. The aircraft left the runway and came to rest in a gully.

## 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" = 'AZ' 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 ('27023'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27023&state=AZ

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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.