NTSB investigations: Franklin 6A4165 series, IN

8 cases on aircraft whose registry engine model is Franklin 6A4165 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

19652026

NTSB investigations: Franklin 6A4165 series, IN per year, 1965–2026: 8 cases
1965	1
1966	1
1967	2
1969	1
1973	1
1978	1
2017	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" = 'IN' 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 ('27025')) 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\" = 'IN' 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 ('27025'))
  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" = 'IN' 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 ('27025'))
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 GAA17CA153Accident · No injuriesData collectionFinal reportStinson 108 · Valparaiso, INThe pilot’s failure to maintain directional control while landing with a crosswind.Feb 20, 2017 · N9277K · Substantial damage NTSB CHI78DEX13Accident · No injuriesClosedStinson 108-2 · Connersville, INFeb 26, 1978 · N9451K · Substantial damage NTSB CHI73FEA31Accident · No injuriesClosedStinson 108-3 · Carmel, INApr 5, 1973 · N747C · Substantial damage NTSB CHI69D0499Accident · Minor injuriesClosedStinson 108 · Laurel, INFeb 26, 1969 · N4147C · Substantial damage NTSB CHI68D0160Accident · No injuriesClosedStinson 108 · Hobart, INJun 30, 1967 · N9788K · Substantial damage NTSB CHI67D0532Accident · No injuriesClosedStinson 108-2 · Clinton, INFeb 2, 1967 · N9276K · Substantial damage NTSB CHI67F0090Accident · Minor injuriesClosedStinson 108 · Mishawaka, INJul 10, 1966 · N4002C · Substantial damage NTSB CHI66A0060Accident · 3 fatalClosedPiper PA-23 · Knox, INDec 19, 1965 · N1100P · 2 aircraft · Destroyed