NTSB investigations: Cessna 421C, 2008
3 cases on aircraft the registry lists as Cessna 421C. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1973 | 1 |
|---|---|
| 1977 | 2 |
| 1979 | 2 |
| 1980 | 2 |
| 1981 | 5 |
| 1982 | 1 |
| 1983 | 5 |
| 1984 | 4 |
| 1985 | 5 |
| 1986 | 5 |
| 1987 | 3 |
| 1988 | 2 |
| 1990 | 2 |
| 1991 | 3 |
| 1992 | 5 |
| 1993 | 1 |
| 1994 | 7 |
| 1995 | 8 |
| 1996 | 2 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 4 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 4 |
| 2003 | 3 |
| 2004 | 2 |
| 2005 | 4 |
| 2006 | 3 |
| 2007 | 1 |
| 2008 | 3 |
| 2009 | 3 |
| 2011 | 3 |
| 2012 | 5 |
| 2013 | 4 |
| 2014 | 1 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 1 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 5 |
| 2026 | 3 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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\") = 2008
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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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") = 2008
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" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB WPR09LA029Accident · No injuriesLimited investigationFinal reportCessna 421C · Mesa, AZThe failure of the hydraulic landing gear extension systems due to a ruptured line.NTSB NYC08LA204Accident · Minor injuriesLimited investigationFinal reportCessna 421C · Greenville, NCThe malfunction and premature retraction of the landing gear for undetermined reasons.NTSB DFW08LA115Accident · No injuriesLimited investigationFinal reportCessna 421C · Sterling, COFailure and separation of the upper and lower right main gear torque links links, which resulted in a loss of directional control on landing roll-out.