NTSB investigations: Cessna 421, TX
8 cases on aircraft the registry lists as Cessna 421. 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
| 1976 | 1 |
|---|---|
| 1979 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1989 | 1 |
| 1997 | 1 |
| 2014 | 1 |
| 2023 | 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\" = 'TX' 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 ('2076010'))
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" = 'TX' 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 ('2076010'))
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 CEN23LA267Accident · No injuriesClass 3 · LimitedFinal reportCessna 421 · Rockport, TXThe failure of the left engine starter adapter gear, which resulted in catastrophic damage to other engine components, and the subsequent loss of engine power.NTSB CEN14LA256Accident · No injuriesLimited investigationFinal reportCessna 421 · Horseshoe Bay, TXThe failure of the drive mechanism for the gearbox motor, which resulted in the gear not extending for the landing.NTSB FTW97FA130Accident · 1 fatalField investigationFinal reportCessna 421 · League City, TXThe pilot's failure to refuel the airplane which resulted in the loss of power to the right engine due to fuel exhaustion, and the pilot's failure to maintain airspeed during the single engine landing approach which resulted in a stall/spin.NTSB FTW89FA074Accident · 1 fatalField investigationFinal reportCessna 421 · Brownsville, TXThe pilot's improper emergency procedure after lossing power in the right engine, and his failure to maintain minimum control speed (VMC), which resulted in a loss of aircraft control. Factors related to the accident were: fuel starvation of the right engine,…NTSB FTW86FA133Accident · 4 fatalField investigationFinal reportCessna 421 · Addison, TXWitnesses reported a normal takeoff and climb was made to an alt of aprx 400 ft AGL at which time eng pwr ceased/ decreased. The rt wing then dropped, the nose and lt wing rose and the acft entered a near vertical descent to ground impact. Post accident exam…NTSB FTW85LA218Accident · No injuriesLimited investigationFinal reportCessna 421 · Mckinney, TXAfter landing while taxiing on the rwy, the acft's nose wheel started bogging down in soft asphalt on the rwy. The soft asphalt was pushed along in front of the wheel until it caused enough resistance to overstress the nose gear causing it to collapse. The…NTSB FTW79FRG25Accident · No injuriesClosedCessna 421 · Lakeway, TXNTSB FTW76FPD27Accident · Minor injuriesClosedCessna 421 · Iowa Park, TX