NTSB investigations: Franklin 6A4150 series, GA

7 cases on aircraft whose registry engine model is Franklin 6A4150 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

NTSB investigations: Franklin 6A4150 series, GA per year, 1964–2026: 7 cases
1964	1
1966	2
1969	1
1977	1
2007	1
2013	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" = 'GA' 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 ('27024')) 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\" = 'GA' 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 ('27024'))
  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" = 'GA' 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 ('27024'))
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 ERA13CA422Accident · No injuriesData collectionFinal reportUniversal Stinson 108 1 · Lawrenceville, GAThe pilot's failure to maintain directional control during the landing, resulting in a ground loop, runway excursion, and structural damage to the right wing.Sep 19, 2013 · N8384K · Substantial damage NTSB ATL07CA059Accident · No injuriesData collectionFinal reportStinson 108 · Lawrenceville, GAThe pilot's failure to maintain directional control on landing roll out resulting in a ground loop.Mar 25, 2007 · N8384K · Substantial damage NTSB MIA77FKG61Accident · No injuriesClosedStinson 108-1 · Stanfordville, GAAug 4, 1977 · N97885 · Substantial damage NTSB MIA70D0312Accident · No injuriesClosedStinson 108-1 · Alma, GAOct 5, 1969 · N8518K · Substantial damage NTSB MIA67F0279Accident · No injuriesClosedBellanca 14-13 · T. Simons Isle, GANov 8, 1966 · N74384 · Substantial damage NTSB MIA67F0095Accident · Serious injuriesClosedStinson 108-2 · Atlanta, GAJun 12, 1966 · N40155 · Destroyed NTSB UNK64X1094Accident · No injuriesClosedBellanca 14132 · Waycross, GAMar 29, 1964 · N74332 · Substantial damage