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Final NTSB investigations: Lycoming 0-435A/0-435C

84 cases on aircraft whose registry engine model is Lycoming 0-435A/0-435C. 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

Final NTSB investigations: Lycoming 0-435A/0-435C per year, 1964–2026: 84 cases
1964	8
1965	4
1966	2
1967	4
1968	7
1969	4
1970	3
1971	4
1972	3
1973	3
1974	2
1975	4
1976	2
1977	2
1979	2
1980	1
1981	3
1982	1
1983	1
1984	2
1985	2
1988	1
1989	1
1990	1
1991	1
1992	1
1993	1
1997	1
1999	2
2000	1
2002	2
2004	1
2005	1
2006	1
2009	1
2011	1
2015	1
2017	1
2024	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 ('41517')) 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 ('41517'))
  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 ('41517'))
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 CEN25LA030Accident · No injuriesClass 4 · LimitedFinal reportStinson L-5 · Pleasanton, TXThe pilot’s failure to maintain control of the airplane during the landing.Oct 26, 2024 · N9HU · Substantial damage NTSB GAA17CA264Accident · No injuriesData collectionFinal reportStinson 108 · Pedro Bay, AKThe pilot’s failure to maintain directional control during the takeoff roll.May 6, 2017 · N9510K · Substantial damage NTSB GAA15CA249Accident · No injuriesData collectionFinal reportStinson L 5E · Tucson, AZThe pilot's failure to maintain directional control during the landing roll, resulting in a runway excursion and a collision with an object.Aug 20, 2015 · N944LB · Substantial damage NTSB WPR11LA477Accident · No injuriesLimited investigationFinal reportStarduster II SA-300 · West Jordan, UTThe pilot of the other airplane's inadequate visual lookout, which resulted in a collision with the standing airplane.Sep 24, 2011 · N23UT · 2 aircraft · Minor damage NTSB WPR09LA290Accident · No injuriesLimited investigationFinal reportBellanca 14-19 · Columbia, CAThe failure of the left main landing gear drag link as a result of overstress fracture. Contributing to the accident was maintenance personnel's failure to detect a small crack in the left main landing gear drag link during the most recent annual inspection.Jun 11, 2009 · N6561N · Substantial damage NTSB LAX06FA233Accident · 1 fatalField investigationFinal reportBellanca 14-19 · Arcata, CAThe pilot's failure to follow the prescribed instrument approach procedure and to maintain the proper glide slope and altitude/clearance from obstacles while on an instrument landing system approach, resulting in a collision with trees. Contributing to the…Jul 17, 2006 · N522A · Destroyed NTSB DEN05CA122Accident · No injuriesData collectionFinal reportStinson L-5G · Gallup, NMan on-ground loss of control due to the flight controls becoming jammed because the pilot failed to properly secure his flight bag.Aug 7, 2005 · N2584B · Substantial damage NTSB CHI05CA043Accident · No injuriesData collectionFinal reportBellanca 14-19 · Williston, NDThe pilot's failure to maintain directional control of the airplane during the takeoff roll. A contributing factorwas the approach light.Dec 10, 2004 · N6563N · Substantial damage NTSB LAX03LA032Accident · No injuriesLimited investigationFinal reportBellanca 14-19 · Napa, CAthe pilot's inadequate management of the fuel system, which led to fuel starvation and a water ditching.Nov 16, 2002 · N501A · Substantial damage NTSB DEN02LA108Accident · No injuriesLimited investigationFinal reportStinson L-5E · Spanish Fork, UTthe pilot's inadequate use of rudder and failure to maintain direcctional control following a bounced landing. A contributing factor was the pilot's improper recovery from the bounced landing.Sep 14, 2002 · N8369H · Substantial damage NTSB SEA00LA161Accident · No injuriesLimited investigationFinal reportStinson 108-3 · Thompson Lake, MTAn improper flare which lead to a hard landing and subsequent main gear collapse as a result of the overload.Aug 13, 2000 · N573C · Substantial damage NTSB FTW99LA271Accident · No injuriesLimited investigationFinal reportStinson L-5 · Woodward, OKThe in-flight separation of the tip of a wood propeller blade. Contributing factors were the soft terrain and ditch encountered during the precautionary landing.Sep 29, 1999 · N68591 · Substantial damage NTSB ANC99LA137Accident · No injuriesLimited investigationFinal reportStinson 108-2 · Chugiak, AKA partial failure of the brake system. A factor associated with the accident was a leaking brake system.Sep 9, 1999 · N97978 · Substantial damage NTSB FTW97LA148Accident · No injuriesLimited investigationFinal reportStinson L5 · Lancaster, TXFailure of the pilot of the Stinson L5, N57789, to see and avoid the RV-6, N139TX.Mar 18, 1997 · N57789 · 2 aircraft · Substantial damage NTSB ANC93LA140Accident · No injuriesLimited investigationFinal reportStinson 108-2 · Near Skwentna, AKThe pilot in command's inadequate preflight planning and preparation. A factor in the accident was the pilot's lack of familiarity with the particular aircraft's performance.Aug 8, 1993 · N97978 · Substantial damage NTSB FTW93LA003Accident · 1 fatalLimited investigationFinal reportCessna Ector 305A · Houston, TXThe pilot of the other aircraft's inadvertent ground loop. Factors were the left quartering tailwind and this pilot's inability to see the other airplane during the landing roll.Oct 3, 1992 · N910E · 2 aircraft · Destroyed NTSB ATL91LA181Accident · No injuriesLimited investigationFinal reportPiper PA-38-112 · Lagrange, GAThe J-5 pilot's failure to maintain adequate visual lookout.Sep 26, 1991 · N26004 · 2 aircraft · Substantial damage NTSB LAX90LA272Accident · Minor injuriesLimited investigationFinal reportStinson L-5B · Victorville, CAThe oil gauge line 'b' nut backed off, and the pilot failed to maintain airspeed.Aug 2, 1990 · N1718M · Substantial damage NTSB MKC89LA174Accident · No injuriesLimited investigationFinal reportStinson L-5 · Minneapolis, MNThe pilot selected the wrong runway and failed to maintain directional control. The crosswind was a contributing factor.Aug 6, 1989 · N68591 · Substantial damage NTSB MKC88LA123Accident · No injuriesLimited investigationFinal reportAeronca 7EC · St. Charles, MOThe plt said he was taxiing out for departure, when he collided with another aircraft that was taxiing in from a local flight. He said he was intending to make an intersection takeoff and failed to see the incoming aircraft in time to avoid a collision.Jul 10, 1988 · N82994 · 2 aircraft · Substantial damage NTSB DEN86LA035Accident · No injuriesLimited investigationFinal reportStinson 108-1 · Beulah, NDDuring a landing at dusk on a snow covered rwy, the acft encountered deep snow and nosed over onto its back. The plt stated that after touchdown, he realized that there was aprx one ft of snow on the rwy and was unable to make a go-around.Nov 30, 1985 · N8143K · Substantial damage NTSB ANC85LA087Accident · No injuriesLimited investigationFinal reportStinson 108-3 · Chugiak, AKWhile landing with a gusty x-wind, the acft bounced, the left wing dragged the ground & the acft went off the rwy. The plt stated that due to the x-wind & his foot slipping off of the rudder pedal, he was unable to maintain directional control.May 28, 1985 · N6175M · Substantial damage NTSB CHI84LA214Accident · No injuriesLimited investigationFinal reportStinson L-5E · Wooster, OHThe plt receiving instruction in landing conventional gear acft lost control during landing. The commercial PIC took control of the acft and his foot became jammed between the rudder pedal and airframe. The acft ground looped violently and nosed over.Jun 2, 1984 · N1570M · Substantial damage NTSB ANC84LA069Accident · Serious injuriesLimited investigationFinal reportStinson 108-3 · Soldotna, AKThe acft was established in normal cruise when the engine quit. The pilot attempted restarts with negative results. The acft made a forced landing and collided with trees. Post accident examination revealed water in the fuel tanks & lines.May 15, 1984 · N6807M · Substantial damage NTSB SEA83LA082Accident · No injuriesLimited investigationFinal reportStinson L-5 · Haines, ORThe aircraft collided with a fence during a takeoff and nosed over. The runway was an alfalfa field approximately 1000 feet in length with high growth. The density altitude was 4000 feet. The aircraft did become airborne but settled back to the field, and…Apr 18, 1983 · N6430C · Substantial damage NTSB MKC82DA076Accident · Minor injuriesFinal reportBellanca 14-19 · Hays, KSThe pilot had purchased the aircraft in Iowa and had obtained a ferry permit to fly it to his home in California. In the vicinity of Hays, Kansas, the fuel tank he was using ran dry. He switched to another tank, turned on the electric boost pump and tried to…May 9, 1982 · N501A · Substantial damage NTSB FTW82FQA07Accident · No injuriesClosedStinson L-5 · Albuquerque, NMOct 20, 1981 · N1718M · Substantial damage NTSB DEN81FTK15Accident · Minor injuriesClosedBellanca 14-19 · Arlington, SDJul 24, 1981 · N529A · Destroyed NTSB LAX81DVG37Accident · Minor injuriesClosedStinson L-5 · Calavares, CAMay 23, 1981 · N63098 · Substantial damage NTSB FTW80FRG73Accident · Minor injuriesClosedStinson 108-3 · Junction, TXSep 20, 1980 · N6948M · Substantial damage NTSB MKC79FCD22Accident · Minor injuriesClosedNavion B · Mapleton, IAJun 8, 1979 · N5301K · Substantial damage NTSB OAK79DVA26Accident · No injuriesClosedRyan ST3KR · Fresno, CAApr 14, 1979 · N56209 · Substantial damage NTSB OAK78FVD03Accident · No injuriesClosedStinson L-5 · San Rafael, CAOct 23, 1977 · N66766 · Substantial damage NTSB CHI77FEX53Accident · No injuriesClosedBellanca 14-19 · Mccordsville, INSep 27, 1977 · N6555N · Substantial damage NTSB NYC77FGM02Accident · Serious injuriesClosedBellanca 14-19 · Fort Littleton, PAOct 15, 1976 · N526A · Substantial damage NTSB SEA76FYC34Accident · No injuriesClosedStinson 108-3 · Goldendale, WAMay 9, 1976 · N6699M · Substantial damage NTSB SEA76FYC26Accident · Minor injuriesClosedHiller Acft UH-12D · Nehalem, ORDec 11, 1975 · N17714 · Destroyed NTSB ANC7LFAG50Accident · No injuriesClosedCessna 170 · Palmer, AKOct 7, 1975 · N3174A · Substantial damage NTSB NYC7KFHD56Accident · Serious injuriesClosedStinson L-5 · Millville, NJJun 25, 1975 · N69887 · Substantial damage NTSB SEA75DYC42Accident · No injuriesClosedHiller Acft UH-12D · Manzanita, ORJun 14, 1975 · N17714 · Substantial damage NTSB DEN74DTE87Accident · No injuriesClosedStinson 108-2 · Holyoke, COJun 28, 1974 · N321C · Substantial damage NTSB ANC74DAG91Accident · No injuriesClosedStinson 108-3 · Nicholi, AKFeb 25, 1974 · N6203M · Substantial damage NTSB CHI74FEE09Accident · No injuriesClosedStinson L-5 · Rockford, ILAug 12, 1973 · N65414 · Substantial damage NTSB DEN74DTE06Accident · No injuriesClosedStinson L-5 · Fort Collins, COJul 22, 1973 · N10453 · Substantial damage NTSB LAX73AL062Accident · 3 fatalClosedBellanca 14-19 · Parker, AZJun 7, 1973 · N6581N · Destroyed NTSB ANC73FAG38Accident · No injuriesClosedBellanca 14-13 · Mcgrath, AKAug 10, 1972 · N69FB · Substantial damage NTSB MKC72FTG21Accident · Serious injuriesClosedStinson 108-1 · Williston, NDMay 21, 1972 · N8639K · Substantial damage NTSB NYC72FIA13Accident · No injuriesClosedBellanca 14-19 · Friendly, MDJan 1, 1972 · N522A · Substantial damage NTSB CHI72DEI26Accident · No injuriesClosedBellanca 14-193 · Painesville, OHDec 29, 1971 · N6553N · Substantial damage NTSB ANC72DAG79Accident · No injuriesClosedStinson 108-2 · Kodiak, AKNov 24, 1971 · N9510K · Substantial damage