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NTSB investigations: Jacobs R755A series, CA

28 cases on aircraft whose registry engine model is Jacobs R755A 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" = 'CA' 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 ('35006')) 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\" = 'CA' 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 ('35006'))
  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" = 'CA' 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 ('35006'))
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 WPR26LA135Accident · No injuriesClass 4 · LimitedFinal reportCessna 195 · Big Bear, CAThe pilot's failure to maintain directional control during the landing roll with a quartering tailwind.Mar 20, 2026 · N9368A · Substantial damage NTSB WPR24LA258Accident · No injuriesClass 4 · LimitedFinal reportBoeing A75N1(PT17) · Camarillo, CAThe pilot’s loss of directional control during landing, which resulted in a nose over.Jul 25, 2024 · N5708N · Substantial damage NTSB WPR24LA145Accident · No injuriesClass 4 · LimitedFinal reportCessna 195 · Big Bear, CAThe pilot’s failure to maintain directional control during takeoff with a gusty crosswind.May 9, 2024 · N2193C · Substantial damage NTSB WPR23LA095Accident · No injuriesClass 4 · LimitedFinal reportCessna 195A · Calexico, CAThe pilot’s failure to maintain directional control during the landing roll in gusting wind.Jan 20, 2023 · N95U · Substantial damage NTSB WPR22LA308Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 195 · El Cajon, CAThe pilot’s failure to verify the fuel quantity prior to departure, which led to a loss of engine power due to fuel exhaustion.Aug 18, 2022 · N1097D · Substantial damage NTSB WPR12CA192Accident · No injuriesData collectionFinal reportCessna 195B · Sacramento, CAThe pilot’s failure to maintain directional control during the landing roll while landing with a gusting wind.Apr 29, 2012 · N2194C · Substantial damage NTSB WPR09CA319Accident · No injuriesData collectionFinal reportCessna LC-126C · Lincoln, CAA fatigue crack in the left main landing gear strut resulting in the collapse of the strut during the landing roll.Jun 30, 2009 · N1064D · Substantial damage NTSB LAX01LA096Accident · No injuriesLimited investigationFinal reportCessna 195A · Palm Springs, CAThe flight instructor's inadequate supervision of his dual student who lost directional control on landing.Feb 10, 2001 · N95U · Substantial damage NTSB LAX93LA034Accident · No injuriesLimited investigationFinal reportCessna 195 · El Cajon, CAThe pilot's improper use of the brakes.Nov 8, 1992 · N3899V · Substantial damage NTSB LAX86LA351Accident · No injuriesLimited investigationFinal reportCessna 195 · Porterville, CAAfter a normal landing the pilot said he began to apply moderate brake pressure to make the mid-field taxiway turn off and felt what he described as 'a light jerk in the left gear' followed by a 'snapping sound which occurred two or three times.' The pilot…Sep 15, 1986 · N3879V · Substantial damage NTSB LAX86LA306Accident · No injuriesLimited investigationFinal reportCessna 195 · Ramona, CAThe aircraft owner stated that the purpose of the flight was to obtain 5 hours of transition training in the tail dragger and accomplish a bfr. After departure the CFI had the pilot perform airwork maneuvers enroute to the Ramona area. The pilot said that a…Jul 28, 1986 · N3899V · Substantial damage NTSB LAX85FUG01Accident · No injuriesFinal reportCessna 195 · Riverside, CAThe acft nosed over during a landing roll following a loss of control.Oct 31, 1984 · N3879V · Substantial damage NTSB LAX84LA081Accident · No injuriesLimited investigationFinal reportCessna 195 · El Cajon, CAThe pilot stated that the acft veered to the right during landing. The pilot tried left brake with no success. The acft groundlooped and the left gear failed. The brakes were examined after the accident but due to the damage to the lines & and fittings no…Nov 29, 1983 · N9335A · Substantial damage NTSB LAX80DVG57Accident · No injuriesClosedGrumman G-164 · Pleasant Grove, CAJun 24, 1980 · N656Y · Substantial damage NTSB OAK79FA031Accident · 2 fatalClosedCessna 195 · Laytonville, CAMay 19, 1979 · N9877A · Destroyed NTSB LAX79FUA08Accident · No injuriesClosedCessna 195 · Long Beach, CAApr 4, 1979 · N1563D · Substantial damage NTSB OAK77FVD34Accident · No injuriesClosedCessna 195 · Stockton, CAMay 20, 1977 · N1563D · Substantial damage NTSB LAX77FUA08Accident · No injuriesClosedCessna 195 · Torrance, CAApr 10, 1977 · N9826A · Substantial damage NTSB LAX75DUG39Accident · No injuriesClosedCessna 195 · Palm Springs, CAMar 23, 1975 · N99T · Substantial damage NTSB LAX75FUD04Accident · No injuriesClosedCessna 195 · Santa Monica, CAFeb 2, 1975 · N9334A · Substantial damage NTSB LAX74FUD01Accident · No injuriesClosedPiper PA-28 · Snta Monica, CAAug 1, 1973 · N4915T · 2 aircraft · Substantial damage NTSB LAX73FWA17Accident · No injuriesClosedCessna 195 · Santa Ana, CAOct 23, 1972 · N3074B · Substantial damage NTSB OAK71DVM37Accident · No injuriesClosedCessna 195 · Monterey, CAJan 18, 1971 · N9894A · Substantial damage NTSB OAK68D0092Accident · No injuriesClosedCessna 195 · Fall R.Mils, CAAug 19, 1967 · N9341A · Substantial damage NTSB LAX67F0386Accident · No injuriesClosedCessna 195 · Torrance, CAApr 28, 1967 · N1081D · Substantial damage NTSB OAK67D0095Accident · No injuriesClosedCessna 195 · Calistoga, CASep 25, 1966 · N3891V · Substantial damage NTSB LAX65D0057Accident · No injuriesClosedCessna 195 · El Monte, CAFeb 6, 1965 · N1594D · Substantial damage NTSB UNK64X4156Accident · No injuriesClosedCessna 195 · Santa Monica, CASep 26, 1964 · N3464V · Substantial damage