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Final NTSB investigations: Pratt & Whitney R-1830 series

66 cases on aircraft whose registry engine model is Pratt & Whitney R-1830 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

19622026

Final NTSB investigations: Pratt & Whitney R-1830 series per year, 1962–2026: 66 cases
1962	1
1963	1
1964	2
1965	2
1966	3
1967	1
1968	1
1969	5
1970	2
1971	6
1973	1
1974	4
1977	3
1978	3
1979	2
1980	1
1981	1
1982	4
1984	1
1985	1
1986	1
1987	1
1989	1
1991	1
1992	1
1993	2
1994	1
1996	2
1998	2
1999	1
2001	2
2006	1
2009	1
2016	2
2018	1
2025	1

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."completionStatus" = 'Completed' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52020')) 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.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52020'))
  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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52020'))
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 ERA26LA028Accident · No injuriesClass 4 · LimitedFinal reportConsolidated Vultee 28-5ACF · Dayton, TNThe collapse of the left main landing gear due to the fatigue fracture of the lower landing gear actuator bolt.Oct 31, 2025 · N222FT · Substantial damage NTSB WPR18FA201Accident · Serious injuriesClass 2 · FieldFinal reportDouglas DC3 · Burnet, TXThe copilot's failure to maintain directional control during the initial takeoff roll and the pilot's failure to adequately monitor the copilot during the takeoff and his delayed remedial action, which resulted in the airplane briefly becoming airborne and…Jul 21, 2018 · N47HL · Destroyed NTSB ERA16FA269Accident · 1 fatalField investigationFinal reportYakovlev YAK11 · West Mifflin, PAA malfunction of the electrical system, which resulted in an electrical fire in the right wing root of the airplane, which compromised the fuel system and resulted in ignition of fuel. Contributing to the accident was the routing of the electrical wiring near…Jul 25, 2016 · N5940 · Substantial damage NTSB CEN16CA126Accident · No injuriesData collectionFinal reportNakajima A6M2 Model 21 · Midland, TXThe Goodyear pilot did not see and avoid the Nakajima ahead on the taxiway.Mar 15, 2016 · N8280K · 2 aircraft · Substantial damage NTSB ERA09LA266Accident · No injuriesLimited investigationFinal reportDouglas DC3 · San Juan, PRWorn electrical wires and a fuel pressure indicating system hose, which resulted in a ground fire during taxi.Apr 26, 2009 · N136FS · Substantial damage NTSB MIA06LA125Accident · Minor injuriesLimited investigationFinal reportDouglas DC-3 · St. ThomasThe airplane's inability to maintain altitude for undetermined reasons, following a loss of power from the left engine.Jul 19, 2006 · N782T · Substantial damage NTSB ATL01FA040Accident · No injuriesField investigationFinal reportDouglas DC-3 · Donalsonville, GAThe failure and separation of No.12 cylinder from the engine case that resulted in an in-flight oil fed fire; and the subsequent separation of the right engine from airframe.Mar 16, 2001 · N842MB · Substantial damage NTSB ANC01FA033Accident · 2 fatalField investigationFinal reportDouglas DC-3 · Unalaska, AKThe airplane flightcrew's failure to maintain adequate distance/altitude from mountainous terrain during a departure climb to cruise flight, and the captain's impairment from drugs. Factors in the accident were dark night conditions, and the first officer's…Jan 24, 2001 · N19454 · Destroyed NTSB MIA99LA248Accident · No injuriesLimited investigationFinal reportDouglas DC3C-S4C4G · Charlotte, NCthe pilot-in-command did not use the check list which resulted in the right main landing gear collapsing.Jul 22, 1999 · N79017 · Substantial damage NTSB ANC98LA114Accident · No injuriesLimited investigationFinal reportDouglas DC-3C · Anchorage, AKThe pilot's failure to maintain directional control during landing, and the resulting overload fracture of the tailwheel fork assembly.Jul 31, 1998 · N305SF · Substantial damage NTSB ANC98LA055Accident · Minor injuriesLimited investigationFinal reportDouglas DC-3C · Anchorage, AKThe pilot's inadequate in-flight planning/decision which resulted in fuel exhaustion and subsequent loss of engine power. A related factor was the soft, marshy terrain at the forced landing area.May 24, 1998 · N67588 · Substantial damage NTSB SEA97FA034Accident · 2 fatalField investigationFinal reportDouglas DC-3C · Boise, IDA fire within the right engine compartment of undetermined cause and the pilot-in-command's failure to maintain airspeed above the aircraft's minimum control speed. A factor contributing to the accident was the dark night environmental conditions.Dec 10, 1996 · N75142 · Destroyed NTSB ATL97LA012Accident · Serious injuriesLimited investigationFinal reportDouglas C-47 · Dorado, PRfailure of the #11 cylinder on the right (#2) engine, which resulted in an in-flight fire and loss of power in that engine; and a malfunction/failure of the #2 feathering system, which led to a subsequent forced landing before the flight crew could return to…Oct 31, 1996 · N37AP · Substantial damage NTSB MIA95LA040Accident · No injuriesLimited investigationFinal reportCessna 208B · Memphis, TNThe inability of the pilot of Cessna 208, N927FE to see Douglas DC3, N24320, as he taxied to takeoff due to inoperative tail navigation lights and beacon lights on the DC3 and due to glare on the wet taxiway.Dec 15, 1994 · N927FE · 2 aircraft · Substantial damage NTSB MIA94LA003Accident · No injuriesLimited investigationFinal reportDouglas DC-3C · San Juan, PRPartial failure of a wing rib due to exfoliation corrosion and inadequate inspection of the aircraft by company maintenance personnel.Oct 7, 1993 · N781T · Substantial damage NTSB MIA93LA106Accident · No injuriesLimited investigationFinal reportDouglas DC-3C · Zephyrhills, FLThe pilot-in-command's failure to maintain best single-engine rate-of-climb speed which resulted in a forced landing. A factor which contributed to the accident was a possible exhaust system clamp failure.Apr 20, 1993 · N8056 · Substantial damage NTSB MIA92IA093Incident · No injuriesIncident investigationFinal reportDouglas DC-3C · San Juan, PRThe pilot-in-command's improper loading of personnel, and improper supervision of the first officer/co-pilot while calculating the center of gravity limits for the flight. This resulted in the forward center of gravity limit being exceeded and subsequent nose…Mar 10, 1992 · N135FS · Minor damage NTSB DEN91LA102Accident · No injuriesLimited investigationFinal reportDouglas DC-3C · Albuquerque, NMThe failure of the right main landing gear tire.Jul 20, 1991 · N96H · Substantial damage NTSB SEA89FA122Accident · No injuriesField investigationFinal reportDouglas DC-3C · Petersburg, AKThe pilot's improper decision to ditch the aircraft when it could have been flown back to the airport using the right seat controls. Contributing factor(s) was: the failure & separation of a portion of the right aileron fabric, and the pilot's excessive force…Jun 26, 1989 · N8042X · Substantial damage NTSB MIA87IA195Incident · No injuriesIncident investigationFinal reportDouglas DC3A · Hilliard, FLAccording to the FAA the pilot stated that just after he rotated for takeoff the acft lost power in the left eng. He then aborted the takeoff, set the acft back on the runway & it slid off the left side into some bushes. The plts did not submit an operator…Jun 30, 1987 · N31MS · Minor damage NTSB DEN86LA102Accident · No injuriesLimited investigationFinal reportDouglas C-47 · Steins, NMWhile en route, the left eng of the C-47 lost partial pwr as a result of a cracked cylinder. The crew stated the left eng was shut down and additional pwr was applied to the right eng to compensate for the increasing rate of descent. The crew stated a short…Mar 23, 1986 · N37AP · Substantial damage NTSB ANC85FA112Accident · No injuriesField investigationFinal reportDouglas DC-3 · King Salmon, AKDuring an instrument apch, the acft's right eng lost power. The plt moved the right fuel selector to the left main tank & began emergency procedures. Shortly after that, the acft broke out of the overcast & the aircrew saw the arpt. However, the left eng also…Jun 30, 1985 · N168Z · Substantial damage NTSB MIA84FA256Accident · No injuriesField investigationFinal reportDouglas DC3 · Boca Raton, FLFour hours and forty mins after takeoff aprx 6 miles from the dest aprt, both engs stopped running. Attempts to restart the engs were unsuccessful. Thinking they were out of fuel, the crew accomplished a forced landing in a wildlife refuge in 10 ft tall…Sep 18, 1984 · N143D · Substantial damage NTSB MIA82DA178Accident · No injuriesFinal reportDouglas C-47 · Charlotte AmaliThe pilot reported normal braking pressure failed while taxiing on the ramp. He attempted to steer clear of other aircraft, but collided with two parked DC-3 aircraft. No determination of the nature of the braking problem was made.Aug 23, 1982 · N87629 · Substantial damage NTSB MIA82FA128Accident · Serious injuriesField investigationFinal reportDouglas DC-3C · St. Petersburg, FLAfter a local maintenance flight the crew returned to St. Petersburg to practice full stop landings. Shortly after becoming airborne during the 2nd takeoff, the right eng experienced a power loss. The acft was observed to climb to about 50 ft AGL, then veer…Jun 6, 1982 · N95C · Destroyed NTSB CHI82FEE14Accident · No injuriesFinal reportDouglas DC-3A · Sandwich, ILAfter returning from a parachute jumping flight, the pilot elected to land on the 1800 ft grass runway. A 3000 ft asphalt runway was available, but he had been using the grass runway to avoid wear on the tires. There was a 30 ft powerline at the approach end…May 29, 1982 · N129H · Substantial damage NTSB MIA82DA046Accident · No injuriesFinal reportHoward 500 · Ft. Lauderdale, FLThe pilot stated that partial power failure of the left engine combined with torque and a crosswind caused a loss of directional control approximately 100 yards into the takeoff roll.Feb 12, 1982 · N1515V · Substantial damage NTSB ANC81FA074Accident · 3 fatalClosedDouglas DC-3 · Pilot Point, AKJul 1, 1981 · N111ST · Destroyed NTSB MIA80FA058Accident · Serious injuriesClosedDouglas C-47B · Dania, FLApr 23, 1980 · N709Z · Destroyed NTSB MIA79FLD79Accident · No injuriesClosedDouglas DC3-C · Tampa, FLJul 22, 1979 · N77B · Substantial damage NTSB MIA79FKG16Accident · No injuriesClosedDouglas DC-3 · Williamson, GAJan 21, 1979 · N133D · Substantial damage NTSB MKC79FA007Accident · Serious injuriesClosedDouglas DC-3 · Des Moines, IADec 2, 1978 · N41447 · Substantial damage NTSB MIA79DA001Accident · 1 fatalClosedDouglas DC-3 · Ft Walton Bch, FLOct 1, 1978 · N74Z · Destroyed NTSB CHI78FA047Accident · Serious injuriesClosedDouglas DC-3 · Richmond, INJul 9, 1978 · N45873 · Substantial damage NTSB DCA78AA001Accident · 29 fatalClosedDouglas DC-3 · Evansville, INDec 13, 1977 · N51071 · Destroyed NTSB MIA77FA062Accident · Serious injuriesClosedDouglas DC-3 · Newton, GAJun 13, 1977 · N38AP · Substantial damage NTSB MIA77DLD39Accident · No injuriesClosedDouglas DC-3 · Polk City, FLMar 18, 1977 · N25670 · Substantial damage NTSB LAX74FUJ73Accident · 2 fatalClosedConvair P4Y-2 · Safford, AZJun 27, 1974 · N7237C · Destroyed NTSB MIA74AM100Accident · No injuriesClosedDouglas DC-3 · San Juan, PRJun 13, 1974 · N87628 · Substantial damage NTSB MIA74AM088Accident · No injuriesClosedDouglas DC3C · Tampa, FLApr 18, 1974 · N90830 · Substantial damage NTSB LAX74IL065Incident · No injuriesClosedDouglas DC3C · Imperial, CAMar 29, 1974 · N190BB · Minor damage NTSB CHI74AC045Accident · No injuriesClosedDouglas DC3A · Ypsilanti, MIDec 2, 1973 · N8661 · Substantial damage NTSB MIA72AM038Accident · No injuriesClosedDouglas DC-3 · St Maarten (Atlantic Ocean)Oct 2, 1971 · N1981W · Destroyed NTSB CHI72AC023Accident · Serious injuriesClosedDouglas DC-3 · Peotone, ILSep 6, 1971 · N44992 · Minor damage NTSB SEA72AS004Accident · No injuriesClosedDouglas DC-3C · Redmond, ORJul 26, 1971 · N51041 · Substantial damage NTSB NYC72AN006Accident · Minor injuriesClosedDouglas DC-3 · Windsor Lks, CTJul 16, 1971 · N74844 · Substantial damage NTSB FTW71IF082Incident · No injuriesClosedDouglas DC-3A · Okla.City, OKJun 11, 1971 · N692A · Minor damage NTSB MIA71RKA11Accident · Serious injuriesClosedDouglas DC-3A · East End, U.S. Virgin IslandsApr 5, 1971 · N57372 · Substantial damage NTSB MIA70AM096Accident · No injuriesClosedDouglas DC-3C · San Juan, PRJun 13, 1970 · N1549V · Substantial damage NTSB ANC70AA080Accident · Minor injuriesClosedDouglas DC-3C · Barrow, AKMay 21, 1970 · N75430 · Substantial damage