NTSB investigations: Cessna 421B

5 cases on aircraft the registry lists as Cessna 421B, where the first occurrence was “Loss of engine power(total) - nonmechanical”. 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

19822026
NTSB investigations: Cessna 421B per year, 1982–2026: 5 cases
19821
19851
19901
19931
19991

Latest 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\" = 353))
  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.

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.Jul 2, 1999 · N5943M · Substantial damageNTSB CHI93FA149Accident · 2 fatalField investigationFinal reportCessna 421B · Valley Park, MOImproper planning/decision by the pilot, which resulted in fuel exhaustion, due to an inadequate supply of fuel, and the pilot's failure to maintain control of the airplane during approach to an emergency landing. A related factor was: failure of the pilot to…Apr 29, 1993 · N4939M · DestroyedNTSB BFO91LA013Accident · No injuriesLimited investigationFinal reportCessna 421B · Morganfield, KYLost of power of both engines due to the pilot's mismanagement of the fuel system.Oct 7, 1990 · N69900 · Substantial damageNTSB DEN86FA033Accident · Serious injuriesField investigationFinal reportCessna 421B · Franktown, COThe acft departed nashville, TN, for a flt to aspen, CO. The plts made one refueling stop at chanute, KS. The plts were unable to land at aspen or a nearby alternate arpt (eagle, CO) and elected to return back to the denver area. The plts indicated to an…Dec 2, 1985 · N249JM · Substantial damageNTSB FTW82FPM17Accident · 1 fatalFinal reportCessna 421B · Afton, OKAt about 1930 CDT, the aircraft departed yukon, OK on a direct flight to alton, IL. It landed at alton at about 2200 CDT, and about 10 minutes later, it departed on a return flight to yukon. Before departing alton, the pilot stated that he would refuel at…Sep 25, 1982 · N8019Q · Destroyed