NTSB investigations: Cessna 421C, 1994
7 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\") = 1994
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") = 1994
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 LAX94LA302Accident · No injuriesLimited investigationFinal reportCessna 421C · Polacca, AZthe pilot's attempt to make a 180-degree turn in soft sand at a speed which imposed side loading on the nose gear. Factors were the pilot's decision to continue the approach beyond the planned touchdown point, the effect of the runway surface on braking…NTSB CHI94LA250Accident · No injuriesLimited investigationFinal reportCessna 421C · Oshkosh, WIthe pilot-in-command's misjudging the flare and his failure to maintain airspeed.NTSB LAX94FA257Accident · 2 fatalField investigationFinal reportCessna 421C · Carlsbad, CAA loss of engine power for undetermined reasons. The pilot's failure to raise the flaps and maintain altitude were factors in the accident.NTSB BFO94WA088Accident · No injuriesForeign investigationCessna CE-421C · Ingolstadt, GermanyNTSB FTW94FA082Accident · 2 fatalField investigationFinal reportCessna 421C · San Antonio, TXImproper servicing of the airplane with jet fuel, which resulted in preignition and/or detonation and subsequent failure of pistons in both engines. A factor related to the accident was: the lack of a restrictive mating nozzle on the refueling truck.NTSB CHI94MA072Accident · 2 fatalMajor investigationFinal reportCessna 421C · Mccook, NEImproper in-flight planning/decision by the pilot, and the accumulation of airframe ice, which resulted in an inadvertent stall. Factors associated with the accident were: partial failure of both alternators, which resulted in a subsequent electrical system…NTSB MIA94FA057Accident · 3 fatalField investigationFinal reportCessna 421C · Titusville, FLFailure of the pilot-in-command to maintain VMC resulting in the inflight loss of control. Contributing to the accident was the fatigue failure of a section of pipe adjacent to a flange which connects to the turbocharger oil outlet of the left engine assembly.