NTSB investigations: Dehavilland DHC-3, WA

5 cases on aircraft the registry lists as Dehavilland DHC-3. 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

19752026
NTSB investigations: Dehavilland DHC-3, WA per year, 1975–2026: 5 cases
19751
19841
20061
20221
20261

Latest 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.\"eventStateOrRegion\" = 'WA' AND c.\"eventCountry\" = 'USA'
    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"

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.

NTSB WPR26LA274Accident · Serious injuriesClass 3 · LimitedPreliminary reportDehavilland DHC-3 · Eastsound, WAOn July 23, 2026, about 1720 Pacific daylight time, a De Havilland DHC-3 Otter airplane, N709KA, was substantially damaged when it was involved in an accident near Eastsound, Washington. The pilot and two passengers were seriously injured, and eight…Jul 24, 2026 · N709KA · DestroyedNTSB DCA22MA193Accident · 10 fatalClass 1 · MajorFinal reportDehavilland DHC-3 · Freeland, WAThe 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…Sep 4, 2022 · N725TH · DestroyedNTSB SEA06LA112Accident · No injuriesLimited investigationFinal reportde Havilland DHC-3T · Port Townsend, WAThe pilot's misjudgment of the airplane's height above the water during a precautionary landing which resulted in a hard landing. Contributing factors were glassy water conditions, fog, and the pilot's inadvertent VFR flight into IMC.Jun 1, 2006 · N606KA · Substantial damageNTSB SEA85FA034Accident · Serious injuriesField investigationFinal reportde Havilland DHC-3 Turbo · West Seattle, WAAcft 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…Dec 19, 1984 · N4247A · Substantial damageNTSB SEA76FYE13Accident · No injuriesClosedDehavilland DHC-3 · Auburn, WASep 4, 1975 · N567AA · Substantial damage