NTSB investigations: Cessna 421B
11 cases on aircraft the registry lists as Cessna 421B, where the sequence of events included Collision with terr/obj (non-CFIT). 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
| 2008 | 1 |
|---|---|
| 2009 | 2 |
| 2010 | 1 |
| 2012 | 1 |
| 2015 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 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_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s.\"tier2Number\" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\")))
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_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
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 GAA19CA143Accident · No injuriesData collectionFinal reportCessna 421 · Woodruff, WIThe pilot's failure to maintain to directional control during takeoff from a snow-covered runway with a right, quartering tailwind, which resulted in a runway excursion and impact with a snowbank.NTSB ERA18WA159Accident · 3 fatalForeign investigationCessna 421B · Rock Sound, BahamasNTSB WPR17LA131Accident · No injuriesClass 3 · LimitedFinal reportCessna 421B · Carlsbad, CAThe right main landing gear collapse for undetermined reasons.NTSB ERA17FA118Accident · 1 fatalField investigationFinal reportCessna 421 · Canton, GAThe pilot's failure to maintain control of the airplane during a night visual landing approach. Contributing to the accident was the pilot's impairment due to his use of a combination of medications.NTSB CEN16FA013Accident · 2 fatalField investigationFinal reportCessna 421B · Hammond, LAThe loss of right engine power on takeoff due to maintenance personnel's failure to properly tighten the crankcase through-studs during cylinder replacement, which resulted in crankshaft fracture. Also causal were the pilot's failure to feather the propeller…NTSB CEN15LA354Accident · Serious injuriesLimited investigationFinal reportCessna C421B · Clovis, NMThe pilot's improper management of fuel to the left engine during approach for landing, which resulted in a total loss of left engine power due to fuel starvation, and his subsequent failure to maintain control during the final landing approach, which…NTSB ERA12LA589Accident · No injuriesLimited investigationFinal reportCessna 421B · Selma, ALThe pilot’s improper fuel management, which resulted in a total loss of engine power on the right engine and a partial loss of engine power on the left engine due to fuel starvation.NTSB CEN10LA166Accident · No injuriesLimited investigationFinal reportCessna 421B · Artesia, NMA loss of engine power due to fuel starvation as a result of the pilot's improper fuel management.NTSB CEN09LA284Accident · Minor injuriesLimited investigationFinal reportCessna 421B · Alpine, TXThe loss of engine power due to disengagement of the magneto idler gear support pin.NTSB ERA09FA248Accident · 1 fatalField investigationFinal reportCessna 421B · Oakland Park, FLThe pilot's failure to maintain aircraft control and secure the right engine during an emergency return to the airport after takeoff. Contributing to the accident was an in-flight fire of the right engine for undetermined reasons.NTSB ANC08CA069Accident · No injuriesData collectionFinal reportCessna 421 · Caldwell, NJThe pilot's failure to maintain directional control while landing. Factors in the accident were a hydroplaning condition, and a wet runway.