# NTSB investigations: Cessna 421C, IL

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 CEN13FA509](https://openairdocs.org/ntsb/CEN13FA509.md): Cessna 421C · Paris, IL · Accident · 1 fatal · Field investigation · Final report · Aug 27, 2013 · N229H · Destroyed
  > The pilot's failure to abort the takeoff during the ground roll after detecting the airplane's degraded performance. Contributing to the accident was the pilot's decision to attempt a flight with a known problem with the left engine and the likely partial…
- [NTSB CHI07CA028](https://openairdocs.org/ntsb/CHI07CA028.md): Cessna 421C · Moline, IL · Accident · No injuries · Data collection · Final report · Nov 26, 2006 · N471BW · Substantial damage
  > The incorrect installation of the torque link scissor assembly by maintenance personnel, which resulted in the collapse of the right main landing gear during landing.
- [NTSB CHI05FA212](https://openairdocs.org/ntsb/CHI05FA212.md): Cessna 421C · Wheeling, IL · Accident · Minor injuries · Field investigation · Final report · Aug 5, 2005 · N421KC · Destroyed
  > The pilot's improper in-flight decision to execute a go-around without raising the landing gear and raising the flaps to the full UP position, resulting in low airspeed and the airplane stalling. Contributing factors to the accident included the pilot's…
- [NTSB CHI92LA046](https://openairdocs.org/ntsb/CHI92LA046.md): Cessna 421 · Wheeling, IL · Accident · No injuries · Limited investigation · Final report · Dec 5, 1991 · N777RA · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during landing. A factor contributing to the accident was the icy runway.
- [NTSB CHI84LA135](https://openairdocs.org/ntsb/CHI84LA135.md): Cessna 421C · Joliet, IL · Accident · No injuries · Limited investigation · Final report · Mar 21, 1984 · N260RA · Substantial damage
  > The acft picked up moderate to severe icing which the pilot thought he had shaken off as he cycled the deice boots. He saw the ice come off of the wings but could not see the horizontal stabilizer. On short final at 100 KTS the control yoke began vibrating.…

## 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" = 'IL' 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 ('2076016', '2076017'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=2076016&state=IL

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