# NTSB investigations: Cessna 421B, MO

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 CHI99FA163](https://openairdocs.org/ntsb/CHI99FA163.md): Cessna 421B · Jefferson City, MO · Accident · 4 fatal · Field investigation · Final report · May 27, 1999 · N34TM · Destroyed
  > the pilot failed to maintain control of the airplane. A factor was the partial loss of power due to the exhaust valve fatigue failure.
- [NTSB CHI93FA149](https://openairdocs.org/ntsb/CHI93FA149.md): Cessna 421B · Valley Park, MO · Accident · 2 fatal · Field investigation · Final report · Apr 29, 1993 · N4939M · Destroyed
  > Improper planning/decision by the pilot, which resulted in fuel exhaustion, due to an inadequate supply of fuel, and the pilot's failure to maintain control of the airplane during approach to an emergency landing. A related factor was: failure of the pilot to…
- [NTSB MKC78FCG15](https://openairdocs.org/ntsb/MKC78FCG15.md): Cessna 421B · St.Joseph, MO · Accident · No injuries · Closed · Jan 27, 1978 · N5433J · 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" = 'MO' 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=MO

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