NTSB investigations: Cessna 421C, CA
20 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
| 1980 | 1 |
|---|---|
| 1981 | 1 |
| 1986 | 1 |
| 1988 | 1 |
| 1990 | 1 |
| 1991 | 1 |
| 1992 | 2 |
| 1993 | 1 |
| 1994 | 1 |
| 1996 | 1 |
| 1999 | 1 |
| 2001 | 1 |
| 2003 | 2 |
| 2012 | 1 |
| 2013 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2021 | 1 |
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 c.\"eventStateOrRegion\" = 'CA' 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"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 c."eventStateOrRegion" = 'CA' 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" 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 WPR21FA270Accident · 2 fatalClass 3 · FieldFinal reportCessna 421C · Monterey, CAThe pilot’s failure to maintain airplane control due to spatial disorientation during an instrument departure procedure in instrument meteorological conditions which resulted in a collision with terrain. Contributing to the accident was the pilot’s lack of…NTSB WPR17LA051Accident · No injuriesLimited investigationFinal reportCessna 421C · Jackson, CAThe failure of the right main landing gear torque link bolt in overstress, which resulted in the collapse of the landing gear during the landing roll.NTSB WPR16LA092Accident · No injuriesLimited investigationFinal reportCessna 421C · Death Valley, CAA runway overrun for reasons that could not be determined based on the available information.NTSB WPR13FA234Accident · 1 fatalField investigationFinal reportCessna 421C · Floriston, CAThe pilot's failure to maintain airplane control during descent while operating in instrument meteorological conditions.NTSB WPR13FA037Accident · 2 fatalField investigationFinal reportCessna 421C · Shaver Lake, CAThe pilot's failure to regain airplane control following a sudden rapid descent during cruise, which resulted in an in-flight breakup. Contributing to the accident was the pilot's decision to make the flight with a failed vacuum pump, particularly at high…NTSB LAX04FA066Accident · 1 fatalField investigationFinal reportCessna 421C · Claremont, CAthe pilot became lost/disoriented during the approach, failed to maintain course alignment with the missed approach procedure, and subsequently lost control of the airplane.NTSB LAX03LA106Accident · No injuriesLimited investigationFinal reportCessna 421C · Crescent City, CAThe separation of the upper and lower right main landing gear scissor links due to improper maintenance, which resulted in a ground loop, and the collapse of the right main landing gear during the landing roll.NTSB LAX01LA169Accident · Minor injuriesLimited investigationFinal reportCessna 421C · Angwin, CARight main landing gear brake lockup during landing rollout for undetermined reasons.NTSB LAX99FA310Accident · Minor injuriesField investigationFinal reportCessna 421C · Santa Monica, CAThe failure of the pilot to establish and maintain a stabilized approach, which resulted in a hard landing and on-ground collision with the airport VASI display.NTSB LAX96LA296Accident · Serious injuriesLimited investigationFinal reportCessna 421C · Avalon, CAthe pilot's failure to initiate a go-around when a landing overshoot became apparent. Factors which contributed to the accident were: the pilot's excessive airspeed and misjudged distance during landing, his lack of flying experience in the Cessna, and…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 LAX93FA149Accident · 3 fatalField investigationFinal reportCessna 421C · Eagle Mountain, CAFailure of the left elevator for undetermined reason(s), which resulted in flutter and failure of the empennage, and subsequent uncontrolled collision with the terrain.NTSB LAX93LA051Accident · Serious injuriesLimited investigationFinal reportCessna 421C · Santa Maria, CA1) The internal failure of the left engine, left magneto due to inadequate maintenance and non compliance with the manufacturers service bulletins and recommendations, and 2) the failure of the pilot to attain the proper touchdown point during the landing…NTSB LAX92FA082Accident · 4 fatalField investigationFinal reportCessna 421C · Mammoth Lakes, CAThe failure of the pilot to plan and conduct his departure flight to avoid high mountainous terrain, during which the pilot became lost/disoriented. Contributing to the accident was self induced pressure to depart before the arrival of a snow storm.NTSB LAX92LA007Accident · No injuriesLimited investigationFinal reportCessna 421C · Santa Monica, CAThe failure of the pilot of the other aircraft to maintain an adequate visual lookout while taxiing his aircraft.NTSB LAX90LA259Accident · No injuriesLimited investigationFinal reportCessna 421C · Lancaster, CAThe accident was eroded ignition spark plug electrodes and maintenance personnel neglecting to adjust spark plug electrodes and maintenance personnel neglecting to adjust spark plug gap. The rough terrain in which the aircraft landed was a factor in the…NTSB LAX88FA215Accident · 4 fatalField investigationFinal reportCessna 421C · Shaver Lake, CAInflight encounter with forcasted severe icing and turbulence beyond the capability of either the aircraft or the pilot , which led to an inflgiht loss of control. Factors in the accident were the pilots lack of understanding of high altitude flight aspects…NTSB LAX86FA314Accident · 1 fatalField investigationFinal reportCessna 421C · Callahan, CAAfter dropping company executives off at medford, the pilot was to return to santa rosa empty. Witnesses along the 25 NM valley which ends at the accident site reported that the aircraft buzzed their locations at AGL altitudes variously described as '10 feet'…NTSB LAX81FVG67Accident · No injuriesClosedCessna 182Q · Placerville, CANTSB LAX80FA049Accident · 1 fatalClosedRiley 421C · Escondido, CA