# Fatal NTSB investigations: Dehavilland DHC-3 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 DCA22MA193](https://openairdocs.org/ntsb/DCA22MA193.md): Dehavilland DHC-3 · Freeland, WA · Accident · 10 fatal · Class 1 · Major · Final report · Sep 4, 2022 · N725TH · Destroyed > The in-flight unthreading of the clamp nut from the horizontal stabilizer trim actuator barrel due to a missing lock ring, which resulted in the horizontal stabilizer moving to an extreme trailing-edge-down position rendering the airplane’s pitch… - [NTSB CEN19MA141](https://openairdocs.org/ntsb/CEN19MA141.md): De Havilland DHC-2 · Ketchikan, AK · Accident · 6 fatal · Class 1 · Major · Final report · May 13, 2019 · N952DB · 2 aircraft · Destroyed > The inherent limitations of the see-and-avoid concept, which prevented the two pilots from seeing the other airplane before the collision, and the absence of visual and aural alerts from both airplanes’ traffic display systems, while operating in a geographic… - [NTSB ANC15FA071](https://openairdocs.org/ntsb/ANC15FA071.md): Dehavilland DHC 3T · Iliamna, AK · Accident · 3 fatal · Field investigation · Final report · Sep 15, 2015 · N928RK · Substantial damage > The pilot's decision to depart in dark night, visual meteorological conditions over water, which resulted in his subsequent spatial disorientation and loss of airplane control. Contributing to the accident was the pilot's failure to determine the airplane's… - [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 DCA13MA121](https://openairdocs.org/ntsb/DCA13MA121.md): Dehavilland DHC-3 · Soldotna, AK · Accident · 10 fatal · Major investigation · Final report · Jul 7, 2013 · N93PC · Destroyed > The operator's failure to determine the actual cargo weight, leading to the loading and operation of the airplane outside of the weight and center of gravity limits contained in the airplane flight manual, which resulted in an aerodynamic stall. Contributing… - [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… - [NTSB ANC04LA098](https://openairdocs.org/ntsb/ANC04LA098.md): de Havilland DHC-3 · McGrath, AK · Accident · 1 fatal · Limited investigation · Final report · Aug 28, 2004 · N197TT · Destroyed > The pilot's inadequate in-flight planning/decision making, his continued VFR flight into instrument meteorological conditions, and his failure to maintain obstacle clearance. Factors contributing to the accident were low ceilings due to smoke, rain, and mist. - [NTSB SEA89FA036](https://openairdocs.org/ntsb/SEA89FA036.md): de Havilland DHC-3 · Ketchikan, AK · Accident · 2 fatal · Field investigation · Final report · Jan 15, 1989 · N11250 · Destroyed > The pilot's inadvertant flight into IFR conditions and the stall which occurred during the turn to reverse course. Contributing to the accident were the snow conditions encountered. - [NTSB MIA87FA015](https://openairdocs.org/ntsb/MIA87FA015.md): de Havilland DHC-3 · San Juan, PR · Accident · 1 fatal · Field investigation · Final report · Oct 29, 1986 · N778L · Destroyed > Witnesses stated that the acft used most of the rwy to takeoff, reached an aprx altitude of 60 feet, then pulled up to clear an embankment. However, the acft struck a tall palm tree & crashed between 2 roads, near an intersection, where the roads merged. The… - [NTSB ANC80FA081](https://openairdocs.org/ntsb/ANC80FA081.md): Dehavnd Can DHC-3 · Togiak, AK · Accident · 2 fatal · Closed · Aug 3, 1980 · N433GR · Destroyed - [NTSB FTW78FRG39](https://openairdocs.org/ntsb/FTW78FRG39.md): Dehaviland DHC-3 · Del Rio, TX · Accident · 3 fatal · Closed · May 10, 1978 · N5370G · Destroyed - [NTSB ANC77FA067](https://openairdocs.org/ntsb/ANC77FA067.md): Dehavilland DHC-3 · Bettles, AK · Accident · 1 fatal · Closed · Aug 4, 1977 · N48064 · Substantial damage ## 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."highestInjuryLevel" = 'Fatal' AND 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')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?fatal=1&model=2802412 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.