NTSB investigations: Cessna 421B, AZ
7 cases on aircraft the registry lists as Cessna 421B. 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 |
|---|---|
| 1983 | 1 |
| 1991 | 1 |
| 1998 | 1 |
| 1999 | 1 |
| 2005 | 1 |
| 2026 | 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 ('2076014'))
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 ('2076014'))
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 WPR26LA145Accident · No injuriesClass 3 · LimitedPreliminary reportCessna 421B · Sedona, AZOn March 27, 2026, about 1630 Pacific daylight time, a Cessna 421B, N799TF, was substantially damaged when it was involved in an accident near Sedona, Arizona. The pilot and pilot rated passenger were not injured. The airplane was operated as a Code of…NTSB LAX05LA130Accident · No injuriesLimited investigationFinal reportCessna 421B · Lake Havasu Cit, AZthe fracture of the landing gear shaft roll pin that resulted in a main gear collapse during the taxi.NTSB LAX99LA240Accident · Minor injuriesLimited investigationFinal reportCessna 421B · Polacca, AZThe pilot's inadequate preflight inspection, which failed to determine the fuel supply in each fuel tank, and his mismanagement of the fuel supply, which resulted in fuel starvation.NTSB LAX98LA121Accident · No injuriesLimited investigationFinal reportCessna 421B · Show Low, AZThe pilot's failure to attain the proper alignment on the runway due to the obscuration by snow of the runway and on the airplane's windows.NTSB LAX91LA129Accident · Serious injuriesLimited investigationFinal reportCessna 421B · Tucson, AZThe fatigue failure of the right engine turbo exhaust clamp, and, the failure of the flying pilot to complete the single engine emergency procedures in a timely manner. A factor in the accident was the failure of the pilot in command to adequately supervise…NTSB LAX83LA259Accident · No injuriesLimited investigationFinal reportCessna 421B · Buckeye, AZThe plt had made 3 night landings at the strip during the past 6 mths. The procedure that had been used for lighting thestrip was to place a vehicle at the west end with the headlights facing east down the centerline of the strip. However, on the night of the…NTSB LAX80FA064Accident · 2 fatalClosedCessna 421B · Tucson, AZ