NTSB investigations: Cessna 421B
6 cases on aircraft the registry lists as Cessna 421B, where the first occurrence was “In flight collision with terrain/water”. 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
| 1988 | 1 |
|---|---|
| 1992 | 2 |
| 1993 | 1 |
| 1999 | 1 |
| 2000 | 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2076014')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 230))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('2076014')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 230))
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 FTW01FA033Accident · 2 fatalField investigationFinal reportCessna 421B · Norman, OKthe pilot's failure to follow the instrument approach procedure and his continued descent below the prescribed minimum descent altitude (MDA). Contributory factors were the pilot's physical impairment from drugs, the low ceiling, fog, and dark night light…NTSB SEA99FA041Accident · 2 fatalField investigationFinal reportCessna 421B · North Bend, ORA delayed aborted takeoff for an undetermined reason.NTSB ATL93LA081Accident · No injuriesLimited investigationFinal reportCessna 421B · Fort Payne, ALThe pilot's failure to compensate for winds during the initial takeoff that resulted in the airplane colliding with the runway, exceeding the design limits of the aircraft and upon landing at the destination airport, the collapse of the main landing gear.NTSB LAX92FA260Accident · 3 fatalField investigationFinal reportCessna 421B · Monterey, CAThe owner/pilot's poor judgement in attempting an operation beyond his experience and ability, which resulted in his failure to attain an adequate climb profile necessary for terrain clearance. Also, the owner/pilot lacked instrument experience, and was…NTSB DEN92FA024Accident · 3 fatalField investigationFinal reportCessna 421B · Steamboat Spgs, COAirframe ice and the pilot's failure to remove it. Factors were: aircraft weight exceeded and lack of pilot certification.NTSB DEN89FA034Accident · 2 fatalField investigationFinal reportCessna 421 · Tooele, UT