# NTSB investigations: Dehavilland DHC-3: Airframe/component/system failure/malfunction

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 ANC03LA021](https://openairdocs.org/ntsb/ANC03LA021.md): de Havilland DHC-3 · Nikolai, AK · Accident · No injuries · Limited investigation · Final report · Dec 28, 2002 · N3904 · Substantial damage
  > An improper and undocumented major repair of the elevator torque tube support assembly by an unknown person, which resulted in an in-flight disconnection of the airplane's right elevator, and a jammed rudder. A factor associated with the accident is the…
- [NTSB ANC89IA099](https://openairdocs.org/ntsb/ANC89IA099.md): De Havilland DHC-3 · Palmer, AK · Incident · No injuries · Incident investigation · Final report · Jun 20, 1989 · N41755 · No damage
  > Inadequate lubrication which resulted in the failure of the horizontal stabilizer's trim actuator.
- [NTSB SEA85FA034](https://openairdocs.org/ntsb/SEA85FA034.md): de Havilland DHC-3 Turbo · West Seattle, WA · Accident · Serious injuries · Field investigation · Final report · Dec 19, 1984 · N4247A · Substantial damage
  > Acft was performing test flt maneuvers when problems with the modified fuel system occurred. Ice blocking a fuel vent line caused a partial collapse of the main (engine feed) fuel cell which produced an errouneous fuel quantity reading. In addition, the main…

## 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_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=2802412&occurrence=130

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