NTSB investigations: Cessna 421C, AZ
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
| 1987 | 1 |
|---|---|
| 1992 | 1 |
| 1994 | 1 |
| 1995 | 3 |
| 2008 | 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\" = 'AZ' 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" = 'AZ' 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 WPR09LA029Accident · No injuriesLimited investigationFinal reportCessna 421C · Mesa, AZThe failure of the hydraulic landing gear extension systems due to a ruptured line.NTSB LAX95FA321Accident · 2 fatalField investigationFinal reportCessna 421C · Phoenix, AZThe pilot's failure to maintain positive aircraft control, a proper airspeed and fly a proper approach path during final approach. Contributing factors to the accident were the pilot's physiological condition, impairment as a result of using a sedating…NTSB LAX95FA319Accident · 8 fatalField investigationFinal reportCessna 421C · Beaver Dam, AZFailure of the pilot to maintain adequate airspeed, while maneuvering on approach, which resulted in an inadvertent stall/spin and uncontrolled collision with terrain. Factors relating to the accident were: the pilot allowed the aircraft weight and balance…NTSB LAX95LA315Accident · No injuriesLimited investigationFinal reportCessna 421C · Chinle, AZthe pilot's selection of a runway inappropriate for the tailwind condition and his resultant failure to achieve a touchdown point which would allow the aircraft to stop prior to over running the departure end. The rough condition of the dirt runway, the lack…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 LAX92TL#09Accident · No injuriesClass 3Final reportCessna 421C · Window Rock, AZNTSB LAX87FA306Accident · No injuriesField investigationFinal reportCessna 421C · Clifton, AZThe flt deptd ry 25 at greenlee cty arpt, Clifton, AZ on a VFR flt to phoenix, AZ. The plt & gnd witnesses rptd that shortly after lift-off, grayish/white smoke emanated from the left engine. The plt was unable to feather the prop, circled the arpt abt 2…