NTSB investigations: Dehavilland DHC-6-300
28 cases on aircraft the registry lists as Dehavilland DHC-6-300. 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
| 1979 | 1 |
|---|---|
| 1980 | 1 |
| 1984 | 2 |
| 1987 | 2 |
| 1991 | 2 |
| 1994 | 1 |
| 1996 | 1 |
| 1997 | 2 |
| 1999 | 2 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2003 | 1 |
| 2011 | 1 |
| 2014 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2024 | 1 |
| 2025 | 3 |
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 ('2802630'))
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 ('2802630'))
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 WPR25LA250Accident · No injuriesClass 3 · LimitedPreliminary reportDe Havilland DHC-6-300 · San Celmente, CAOn August 11, 2025, at 1130 Pacific daylight time, a De Havilland DHC-6-300, N344CS, was substantially damaged when it was involved in an accident at San Clemente Island, California. The 2 pilots and 16 passengers were not injured. The airplane was operated…NTSB WPR25LA248Accident · Minor injuriesClass 3 · LimitedPreliminary reportDe Havilland DHC-6-300 · Whitmore, AZOn August 9, 2025, about 1240 Pacific daylight time, a De Havilland DHC-6-300, N189GC, was substantially damaged when it was involved in an accident near Whitmore, Arizona. Six passengers sustained minor injuries, and the captain, first officer and remaining…NTSB WPR25LA152Accident · No injuriesClass 3 · LimitedPreliminary reportDehavilland DHC-6-300 · Boulder City, NVOn May 6, 2023, about 1450 Pacific daylight time, a DeHavilland DHC-6-300, N142SA, was substantially damaged when it was involved in an accident near Boulder City, Nevada. The 2 pilots and 11 passengers were not injured. The airplane was operated as a Title…NTSB WPR25LA038Accident · No injuriesClass 3 · LimitedFinal reportDehavilland DHC-6-300 · Boulder City, NVA loss of directional control during the landing roll in gusting crosswind conditions.NTSB WPR20CA112Accident · No injuriesData collectionFinal reportDe Havilland DHC6 · Boulder City, NVThe trainee pilot's loss of directional control during landing and his subsequent unintentional control interference with the brakes and/or rudder during the trainer pilot's attempted remedial action, which resulted in a runway excursion and collision with a…NTSB CEN19LA267Accident · Minor injuriesClass 3 · LimitedFinal reportDe Havilland DHC6 · San Marcos, TXThe pilot's delayed go-around attempt and the flight instructor's delayed remedial action that resulted in a nose-down impact with terrain during an attempted go-around.NTSB ANC18LA027Accident · Serious injuriesLimited investigationFinal reportDehavilland DHC 6 Twin Otter · Arctic OceanThe flight crew's improper decision to deliberately operate the airplane at low altitude and along a flightpath that resulted in a collision with a pedestrian after takeoff. Contributing to the accident was the pedestrian's proximity to the runway.NTSB GAA17CA303Accident · No injuriesData collectionFinal reportDehavilland DHC 6 · Perris, CAThe prospective pilot’s improper landing flare and the pilot’s delayed remedial action to initiate a go-around, which resulted in a runway excursion.NTSB WPR14LA313Accident · No injuriesLimited investigationFinal reportEurocopter EC 130 B4 · Boulder City, NVThe airplane flight crew’s failure to exercise the necessary vigilance and precautions and yield the right of way to the landing helicopter, which resulted in the airplane colliding with the helicopter. Contributing to the accident was the helicopter pilot’s…NTSB ENG11IA032Incident · No injuriesIncident investigationFinal reportDehavilland DHC-6-300 · Peach Springs, AZA quality control failure in the Sungear, Inc. manufacturing and quality control process allowed sungears with surface finishes of the root fillet radius of the spline that did not conform to the drawing specifications to be released. The surface finish…NTSB ANC03LA043Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6 · Anchorage, AKThe failure of the captain to maintain adequate clearance between the airplane's wingtip and a parked vehicle. A factor contributing to the accident was the failure of ground personnel to utilize a wing walker as prescribed in company policy when aircraft are…NTSB ANC02LA053Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Ketchikan, AKThe failure of a ground handler to follow company proceedure/directives, and his premature release of a mooring line. Factors associated with the accident were the congested operations area, and the operator's failure to provide adequate safe zones for the…NTSB SEA01TA083Accident · No injuriesFinal reportde Havilland DHC-6-300 · Star, IDFatigue failure of the nose wheel steering cable during the landing roll. Rough/uneven terrain was a factor.NTSB DEN00FA085Accident · No injuriesField investigationFinal reportde Havilland DHC-6-300 · Monument Valley, UTThe pilot-in-command's failure to maintain directional control. A factor was wind shear.NTSB ANC99LA107Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Ketchikan, AKA failure of ground handling personnel to verify a release procedure/directive, and removal of the airplane's tiedown, and subsequent collision with a parked airplane.NTSB ANC99LA064Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Anchorage, AKAn in-flight collision with a bird.NTSB LAX97LA250Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Elko, NVThe failure of maintenance personnel to correctly diagnose and correct a reoccurring nose gear steering problem, and the improperly tensioned nose wheel steering actuator cables which provided the pilot with an erroneous cockpit indication that the nose gear…NTSB LAX97LA157Accident · Minor injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Hilo, HIthe pilot's inadequate en route fuel consumption calculations, which led to his failure to recognize a deteriorating fuel duration versus time-to-go situation in a more timely way.NTSB MIA96WA110Accident · Minor injuriesForeign investigationde Havilland DH6 · Virgin Gorda, British Virgin IslandsNTSB SEA94T#A04Accident · No injuriesClass 3Final reportde Havilland DHC-6-300 · Mccall, IDNTSB ANC92LA010Accident · No injuriesLimited investigationFinal reportDe Havilland DHC-6 · Chevak, AKThe high crosswind condition, the pilot in commands inability to compensate for the wind conditions, and his failure to follow company procedures and the procedures recommended in the aircraft flight manual. Factor relating to the accident was the captain's…NTSB DEN91LA082Accident · No injuriesLimited investigationFinal reportBoeing DHC-6-300 · Denver, COThe pilot's failure to perform an adequate preflight, I.e., not following the check list and the normal brake system was inoperative as a result of no hydraulic system pressure (hydraulic system circuit breaker not 'in').NTSB LAX87LA250Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Grand Canyon, AZWhile taxiing for takeoff, the underside of the left wing struck the boom of a backhoe parked adjacent to the aircraft ramp. The unattended backhoe was parked in a dirt area adjacent to the ramp with the boom in the extended position while the operator was on…NTSB LAX87IA176Incident · No injuriesIncident investigationFinal reportde Havilland DHC-6-300 · Agana (Pacific Ocean)As the aircraft approached its home airport at Agana, guam the captain passed out. The first officer took over the controls and landed the acft without further incident. The cause of the incapacitation was not determined.NTSB FTW84IA412Incident · No injuriesIncident investigationFinal reportde Havilland DHC-6-300 · Houston, TXDuring a landing on rwy 14R, the acft veered off the left side of the rwy, hit a rwy sign & was damaged. At the same time the DHC-6 was approaching to land, a Boeing 727 was also in the traffic pattern to land on rwy 14L. According to tower personnel, the…NTSB LAX84FA415Accident · 1 fatalField investigationFinal reportde Havilland DHC-6-300 · Tau, AntarcticaThe acft crash landed after the plt used flaps and power to semi-control pitch after the elevator down control cable failed at about 300 ft AGL on final approach. The left wing of the acft hit the terminal roof during the stall mush FROM50 ft AGL. The company…NTSB FTW80DA120Accident · No injuriesClosedDehavilland DHC-6 · Wichita Falls, TXNTSB LAX80DA011Accident · Serious injuriesClosedDehavilland DHC-6 · Tau, Antarctica