# NTSB investigations: Warner SS40&50, 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 WPR26LA059](https://openairdocs.org/ntsb/WPR26LA059.md): Waco RNF · Phoenix, AZ · Accident · No injuries · Class 4 · Limited · Final report · Dec 14, 2025 · N110Y · 2 aircraft · Substantial damage
  > The biplane pilot’s failure to maintain adequate clearance from the low-wing airplane while taxiing.
- [NTSB GAA16CA190](https://openairdocs.org/ntsb/GAA16CA190.md): Monocoupe 110 · Chandler, AZ · Accident · No injuries · Data collection · Final report · Apr 12, 2016 · N501W · Substantial damage
  > The pilot's incorrect installation of the tailwheel steering bungee, which resulted in a runway excursion and airplane nose over.
- [NTSB LAX07CA010](https://openairdocs.org/ntsb/LAX07CA010.md): Monocoupe 110 Special · Chandler, AZ · Accident · No injuries · Data collection · Final report · Oct 15, 2006 · N501W · Substantial damage
  > the failure of the forward left main landing gear attach point resulting in loss of control.

## 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 ('64503'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=64503&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.