NTSB investigations: Jacobs R755A series, AZ

6 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

19712026

NTSB investigations: Jacobs R755A series, AZ per year, 1971–2026: 6 cases
1971	1
1972	1
1976	1
1985	1
2009	1
2010	1

Where

Open the map

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" = 'AZ' 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\" = 'AZ' 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" = 'AZ' 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 WPR10CA471Accident · No injuriesData collectionFinal reportCessna 195 · Prescott, AZThe pilot's failure to maintain directional control during the takeoff roll, resulting in a runway excursion.Sep 26, 2010 · N1558D · Substantial damage NTSB WPR09CA468Accident · No injuriesData collectionFinal reportCessna 195 · Kingman, AZFailure of the right landing gear wheel attachment bolts.Sep 28, 2009 · N190JS · Substantial damage NTSB LAX85LA237Accident · No injuriesLimited investigationFinal reportCessna 195 · Tucson, AZThe student lost control & ground looped the acft during rollout from the fifth landing while practicing for his bfr. The CFI reported that the accident might have been prevented had he been more attentive and/or provided better supervision.Apr 6, 1985 · N4331N · Substantial damage NTSB LAX76DUJ71Accident · Minor injuriesClosedCessna 195 · Show Low, AZApr 24, 1976 · N9372A · Substantial damage NTSB LAX72DUJ92Accident · No injuriesClosedCessna 195 · Superior, AZApr 8, 1972 · N174L · Substantial damage NTSB LAX71FUJ75Accident · No injuriesClosedCessna 195 · Phoenix, AZApr 2, 1971 · N3891V · Substantial damage