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NTSB investigations: Pratt & Whitney R-2800 series, AK

28 cases on aircraft whose registry engine model is Pratt & Whitney R-2800 series. 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19642026

Where

Latest cases

Query with 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."eventStateOrRegion" = 'AK' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52026')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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\" = 'AK' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52026'))
  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."eventStateOrRegion" = 'AK' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52026'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run 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 ANC24LA066Accident · No injuriesClass 4 · LimitedFinal reportCurtiss Wright C-46R · Kenai, AKAn in-flight collision with birds during takeoff.Jul 11, 2024 · N7848B · Substantial damage NTSB ANC19LA045Accident · No injuriesClass 3 · LimitedFinal reportDouglas C 118A · Buckland, AKThe pilot's failure to maintain an adequate glidepath during the approach, which resulted in the airplane impacting rocks and dirt at the runway threshold, a separation of the right main landing gear, and a loss of directional control.Aug 1, 2019 · N451CE · Substantial damage NTSB ANC18CA054Accident · Minor injuriesData collectionFinal reportCurtiss Wright C46 · Manley Hot Springs, AKThe pilot's failure to attain the proper touchdown speed and his decision to land with a tailwind without ensuring that there was adequate runway length for the touchdown.Jul 16, 2018 · N1822M · Substantial damage NTSB ENG14IA016Incident · No injuriesIncident investigationFinal reportDouglas C 118A · Emmonak, AKThe fatigue failure of the lower wing skin due to aging mechanisms. Contributing to the failure were lower wing skin inspection procedures insufficient to identify the crack.Feb 25, 2014 · N351CE · Minor damage NTSB ANC14CA012Accident · No injuriesData collectionFinal reportDouglas DC-6 · Nuiqsut, AKA load shift during takeoff, which resulted in substantial damage to the aft bulkhead and associated structures.Nov 25, 2013 · N100CE · Substantial damage NTSB ANC13LA063Accident · No injuriesLimited investigationFinal reportCurtiss Wright C-46F · Fairbanks, AKThe failure of the right main landing gear side brace due to fatigue, which resulted in a collapse of the right main landing gear.Jul 3, 2013 · N1837M · Substantial damage NTSB ANC11CA044Accident · No injuriesData collectionFinal reportDouglas DC-6B · Cold Bay, AKThe flight crew's failure to extend the landing gear, which resulted in an inadvertent wheels up landing. Contributing to the accident was the flight crew's diverted attention.Jun 12, 2011 · N600UA · Substantial damage NTSB ANC10FA067Accident · 3 fatalField investigationFinal reportFairchild C-123K · McKinley Park, AKThe pilot's failure to maintain adequate airspeed to avoid a low altitude stall, resulting in a loss of control and collision with terrain.Aug 1, 2010 · N709RR · Substantial damage NTSB ANC03LA012Accident · No injuriesLimited investigationFinal reportCurtiss-Wright CW-46 · Fairbanks, AKThe failure of the right main landing gear locking device to engage, which allowed the right main landing gear to collapse during taxi from landing.Oct 29, 2002 · N54514 · Substantial damage NTSB ANC01LA034Accident · No injuriesLimited investigationFinal reportDouglas DC-6B · Crooked Creek, AKThe flight crew's misjudged flare while landing. Factors associated with the accident were flat light conditions, snow-covered terrain, and an uphill runway grade.Jan 31, 2001 · N4390F · Substantial damage NTSB ANC01LA009Accident · No injuriesLimited investigationFinal reportCurtis-Wright C-46F · Port Alsworth, AKThe pilot's failure to maintain clearance during taxi. A factor associated with the accident was trees.Oct 5, 2000 · N1822M · Substantial damage NTSB ANC85FA118Accident · Minor injuriesField investigationFinal reportDouglas DC-6A · Egegik, AKAirplane accelerated to v 1 and struck through on sandy beach. The nose pitched up and the pilot lost directional control. The airplane struck adjacent bank caught fire. It was totally destroyed.Jul 7, 1985 · N2878F · Destroyed NTSB ANC85LA057Accident · No injuriesLimited investigationFinal reportCurtiss C-46R · Nulato, AKThe acft continued off the end of the rwy and contacted a snow berm during the landing roll. The plt reported the rwy braking action as poor.Mar 14, 1985 · N7848B · Substantial damage NTSB ANC84IA103Incident · No injuriesIncident investigationFinal reportFairchild C-82A · Anchorage, AKDuring arrival at the destination arpt, the aircrew was unable to extend the landing gear by using either the normal or emergency systems. They elected to return to Anchorage where emergency equipment was available. Fuel was reduced & subsequently a wheels up…Jun 26, 1984 · N4753C · Minor damage NTSB ANC83FA119Accident · Serious injuriesField investigationFinal reportCurtiss C-46A · Bettles, AKJust after touchdown the acft rolled over a frost heave on the rwy surface and began veering to the right. The plt applied left brake and added pwr to the right eng but the acft continued going right until the right wing struck a hill adjacent to the right…Jul 10, 1983 · N92853 · Substantial damage NTSB ANC83IA118Incident · No injuriesIncident investigationFinal reportFairchild C-82A · Anchorage, AKThe main landing gear collapsed after landing. The nose gearwas down & locked with a green light in the cockpit. There was no down & locked light illuminated for the main gear. Examination revealed signatures consistent with extreme overload as in attempting…Jul 7, 1983 · N9701F · Minor damage NTSB ANC83FA080Accident · No injuriesField investigationFinal reportCurtiss-Wright C-46F · King Salmon, AKThe coplt reported that the acft had been in level cruise flt aprx 1 min when they felt a vibration, followed by a loud bang. The aircrew saw fire & smoke coming from the left eng, so they shut down the eng & feathered the propeller. The plt also activated…May 21, 1983 · N1822M · Substantial damage NTSB ANC82DA101Accident · No injuriesFinal reportFairchild C-82A · Karluk, AKThe pilot reported that during arrival, the approach to landing seemed normal until just before touchdown. The aircraft touched down short of the runway threshold marks on relatively steep terrain in the safety zone. The pilot estimated that the touchdown…Sep 27, 1982 · N9701F · Substantial damage NTSB ANC80FA097Accident · No injuriesClosedFairchild C-82A · Goodnews Bay, AKSep 3, 1980 · N9701F · Substantial damage NTSB ANC80IA093Incident · No injuriesClosedDouglas DC-6 · Dillingham, AKAug 26, 1980 · N2878F · Minor damage NTSB ANC80IA073Incident · No injuriesClosedFairchild C-82A · Aniak, AKJul 24, 1980 · N8009E · Minor damage NTSB ANC75AA086Accident · No injuriesClosedCurtis-Wrt C-46F · Barrow, AKMay 17, 1975 · N800FA · Substantial damage NTSB ANC75AA071Accident · No injuriesClosedCurtiss-Wrt C-46 · Deadhorse, AKMar 27, 1975 · N4860V · Substantial damage NTSB ANC75AA052Accident · No injuriesClosedCurtiss-Wrt C-46F · Arctic Village, AKJan 22, 1975 · N1663M · Substantial damage NTSB ANC74AA072Accident · No injuriesClosedCurtis-Wrt C-46 · Fairbanks, AKMay 13, 1974 · N1663M · 2 aircraft · Minor damage NTSB ANC68A0025Accident · No injuriesClosedCurtiss-Wrt C-46A · Fairbanks, AKOct 13, 1967 · N92853 · Substantial damage NTSB ANC67A0056Accident · No injuriesClosedCurtiss-Wrt C-46 · Anchorage, AKMar 17, 1967 · N1663M · Substantial damage NTSB UNK65X0918Accident · No injuriesClosedCurtiss C46 · Oliktok Pt, AKDec 4, 1964 · N4860V · Substantial damage