# NTSB investigations: Cessna 421C, 1983

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 DEN84FA004](https://openairdocs.org/ntsb/DEN84FA004.md): Cessna 421C · Center, CO · Accident · No injuries · Field investigation · Final report · Oct 9, 1983 · N770JW · Substantial damage
  > The acft collided with a dirt bank after a left engine overspeed and loss of directional control during takeoff. The plthad already aborted one takeoff due to overboost and a sticking wastegate. The problem seemed corrected after work and lubrication by a…
- [NTSB FTW83LA412](https://openairdocs.org/ntsb/FTW83LA412.md): Cessna 421C · Port Lavaca, TX · Accident · No injuries · Limited investigation · Final report · Sep 2, 1983 · N87546 · Substantial damage
  > The acft collided with a fence and bushes during takeoff. The rwy was shell and turf construction 2300 ft long. The plt figured the takeoff distance from a chart using dry hard surfaced level rwy. The acceleration seemed slow according to a witness and the…
- [NTSB CHI83FA383](https://openairdocs.org/ntsb/CHI83FA383.md): Cessna 421C · Centerto, IN · Accident · Serious injuries · Field investigation · Final report · Aug 16, 1983 · N386G · Destroyed
  > The plt reported that during a climb after takeoff, he engaged the autopilot. While making an entry on a trip sheet, he felt a bump & noted that the acft had started to descend. He disengaged the autopilot & the nose pitched down violently. Reducing power had…
- [NTSB DEN83LA081](https://openairdocs.org/ntsb/DEN83LA081.md): Cessna 421C · Gunnison, CO · Accident · No injuries · Limited investigation · Final report · Mar 18, 1983 · N67943 · Substantial damage
  > The plt began taking off on rwy 06 with a wind from 190 deg at 8 KTS. He stated that max power & RPM were obtained. He noted that he obtained 39 inches of manifold pressure & 2235 RPM at 100 KTS IAS. Reportedly, the acft rotated properly, but began to vibrate…
- [NTSB FTW83LA095](https://openairdocs.org/ntsb/FTW83LA095.md): Cessna 421C · Houston, TX · Accident · No injuries · Limited investigation · Final report · Jan 7, 1983 · N448 · Substantial damage
  > The pilot stated that after a normal coupled ILS approach he broke out at about 250 ft AGL and 1/2 mile from the rwy. He disconnected the approach coupler and lined up with the rwy. He stated that during the transition from IFR to visual his rate of descent…

## 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 year(c."eventDate") = 1983
  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&year=1983

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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.