# NTSB investigations: Cessna 421B: Loss of control in flight

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN19FA100](https://openairdocs.org/ntsb/CEN19FA100.md): Cessna 421 · Plain City, OH · Accident · 1 fatal · Class 2 · Field · Final report · Mar 17, 2019 · N424TW · Destroyed
  > A loss of airspeed indication due to icing of the airplane's pitot probe, and the pilot's loss of control while maneuvering.
- [NTSB GAA18CA390](https://openairdocs.org/ntsb/GAA18CA390.md): Cessna 421 · Clifton, TX · Accident · No injuries · Data collection · Final report · Jul 1, 2018 · N7625Q · Substantial damage
  > The pilot's improper landing flare in crosswind conditions, which resulted in a hard landing.
- [NTSB ERA18WA159](https://openairdocs.org/ntsb/ERA18WA159.md): Cessna 421B · Rock Sound, Bahamas · Accident · 3 fatal · Foreign investigation · Jun 5, 2018 · N421MM · Destroyed
- [NTSB ERA17FA118](https://openairdocs.org/ntsb/ERA17FA118.md): Cessna 421 · Canton, GA · Accident · 1 fatal · Field investigation · Final report · Mar 4, 2017 · N421KL · Substantial damage
  > The 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 CEN16FA013](https://openairdocs.org/ntsb/CEN16FA013.md): Cessna 421B · Hammond, LA · Accident · 2 fatal · Field investigation · Final report · Oct 14, 2015 · N33FA · Destroyed
  > The 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 CEN12FA606](https://openairdocs.org/ntsb/CEN12FA606.md): Cessna 421B · Fort Worth, TX · Accident · Serious injuries · Field investigation · Final report · Sep 5, 2012 · N69924 · Substantial damage
  > The pilot's failure to maintain airplane control on takeoff, which resulted in an inadvertent stall. Contributing to the accident were the unlatched nose cargo door, the pilot’s diverted attention, and the pilot's mental ability to handle the emergency…
- [NTSB ERA09FA248](https://openairdocs.org/ntsb/ERA09FA248.md): Cessna 421B · Oakland Park, FL · Accident · 1 fatal · Field investigation · Final report · Apr 17, 2009 · N1935G · Substantial damage
  > The 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.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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" = '240' 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
```

This list as a web page: https://openairdocs.org/ntsb-events/240/sequence?model=2076014

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