# NTSB investigations: Dehavilland DHC-3: Controlled flight into terr/obj (CFIT)

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 ANC18FA053](https://openairdocs.org/ntsb/ANC18FA053.md): De Havilland DHC 3 · Hydaburg, AK · Accident · Serious injuries · Field investigation · Final report · Jul 10, 2018 · N3952B · Substantial damage
  > The pilot's decision to continue the visual flight rules flight into instrument meteorological conditions, which resulted in controlled flight into terrain.
- [NTSB ANC15MA041](https://openairdocs.org/ntsb/ANC15MA041.md): Dehavilland DHC-3 · Ketchikan, AK · Accident · 9 fatal · Class 1 · Major · Final report · Jun 25, 2015 · N270PA · Substantial damage
  > (1) the pilot's decision to continue visual flight into an area of instrument meteorological conditions, which resulted in his geographic disorientation and controlled flight into terrain; and (2) Promech's company culture, which tacitly endorsed flying in…
- [NTSB ANC11FA107](https://openairdocs.org/ntsb/ANC11FA107.md): Dehavilland DHC-3T · Kodiak, AK · Accident · 1 fatal · Field investigation · Final report · Sep 24, 2011 · N361TT · Substantial damage
  > The pilot’s failure to maintain clearance from a tree during a low altitude maneuver and his failure to maintain control of the airplane. Contributing to the accident was the pilot’s use of over-the-counter sedating medications.
- [NTSB ANC10MA068](https://openairdocs.org/ntsb/ANC10MA068.md): Dehavilland DHC-3 · Aleknagik, AK · Accident · 5 fatal · Class 1 · Major · Final report · Aug 9, 2010 · N455A · Substantial damage
  > The pilot's temporary unresponsiveness for reasons that could not be established from the available information. Contributing to the investigation's inability to determine exactly what occurred in the final minutes of the flight was the lack of a cockpit…

## 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 ('2802412', '2800202', '2802414')
    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" = '120' 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/120/sequence?model=2802412

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