# NTSB investigations: Cessna 421B, TN

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 ERA26LA360](https://openairdocs.org/ntsb/ERA26LA360.md): Cessna 421B · Nashville, TN · Accident · No injuries · Class 4 · Limited · Investigation open · Sep 25, 2026 · N421FA · Substantial damage
- [NTSB ATL05FA032](https://openairdocs.org/ntsb/ATL05FA032.md): Cessna 421B · Apison, TN · Accident · 5 fatal · Field investigation · Final report · Dec 2, 2004 · N421SD · Destroyed
  > The pilot's improper identification of a partial loss of engine power on initial takeoff climb resulting in a collision with trees and the ground. A factor was a partial failure of the left engine starter adapter due to overload.
- [NTSB ATL88FA191](https://openairdocs.org/ntsb/ATL88FA191.md): Cessna 421B · Knoxville, TN · Accident · 1 fatal · Field investigation · Final report · Jun 9, 1988 · N700SC · Destroyed
- [NTSB IAD78FA028](https://openairdocs.org/ntsb/IAD78FA028.md): Cessna 421B · Knoxville, TN · Accident · 5 fatal · Closed · Jan 3, 1978 · N41037 · Destroyed
- [NTSB IAD78FA079](https://openairdocs.org/ntsb/IAD78FA079.md): Cessna 421 · Nashville, TN · Accident · Serious injuries · Closed · Jul 8, 1977 · N1504G · Destroyed

## 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" = 'TN' 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 ('2076014'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=2076014&state=TN

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