# NTSB investigations: Grumman American Avn. AA-1C: Loss of engine power(total) - mech failure/malf

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 BFO91LA054](https://openairdocs.org/ntsb/BFO91LA054.md): Grumman AA-1C · Union Hall, VA · Accident · No injuries · Limited investigation · Final report · Jun 13, 1991 · N9755U · Substantial damage
  > The loss of engine power brought on by a failure of the number three clyinder exhaust valve. Contributing to the accident was a hidden object on the emergency landing field.
- [NTSB CHI82DA235](https://openairdocs.org/ntsb/CHI82DA235.md): Grumman American AA-1C · Danville, IL · Accident · Minor injuries · Final report · Jul 5, 1982 · N9830U · Destroyed
  > The student pilot stated that at 3000 ft, 14 NM north of the Danville VOR, the engine began vibrating. The engine lost power and the pilot was forced to land in a bean field approximately 4 miles north of the Danville airport. Engine examination revealed the…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3960100')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 351))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3960100&occurrence=351

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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.