# NTSB investigations: American AA-1A, CO

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 DEN01LA009](https://openairdocs.org/ntsb/DEN01LA009.md): Grumman American AA-1A · Greeley, CO · Accident · No injuries · Limited investigation · Final report · Oct 29, 2000 · N41RC · Substantial damage
  > Carburetor ice formation due to the pilot's improper use of the carburetor heat control. Factors were the fence and fence post.
- [NTSB FTW98FA299](https://openairdocs.org/ntsb/FTW98FA299.md): Grumman American AA-1A · Larkspur, CO · Accident · 1 fatal · Field investigation · Final report · Jul 5, 1998 · N9453L · Destroyed
  > The pilot inadvertently stalling the airplane and entering an unrecoverable spin. A factor was clear air turbulence.
- [NTSB DEN73FTE70](https://openairdocs.org/ntsb/DEN73FTE70.md): Amer Avco AA1 · Erie, CO · Accident · 1 fatal · Closed · Apr 21, 1973 · N6346L · 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" = 'CO' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0630710'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=0630710&state=CO

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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.