NTSB investigations: Franklin 6A4150 series, VA

6 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

19682026

NTSB investigations: Franklin 6A4150 series, VA per year, 1968–2026: 6 cases
1968	1
1969	2
1975	1
2001	1
2003	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" = 'VA' 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\" = 'VA' 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" = 'VA' 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 NYC03LA175Accident · No injuriesLimited investigationFinal reportStinson 108 · White Post, VAThe pilot/ mechanic's improper annual inspection including his rigging of the elevator flight control, and his subsequent inadequate preflight inspection of the airplane prior to flight, when he failed to detect the improperly rigged elevator flight control,…Jul 31, 2003 · N97168 · Substantial damage NTSB IAD01LA047Accident · Serious injuriesLimited investigationFinal reportStinson 108 · White Post, VAthe pilot's failure to remove frost from the airplane prior to departure. A factor in the accident was the tall wet grass.Apr 26, 2001 · N97168 · Substantial damage NTSB IAD75FID25Accident · No injuriesClosedBellanca 14-19 · New London, VAJun 9, 1975 · N74388 · Substantial damage NTSB DIA70D0053Accident · No injuriesClosedBellanca 14-13 · Newport News, VAAug 19, 1969 · N74287 · Substantial damage NTSB DIA69D0134Accident · No injuriesClosedBellanca 14-13- · Roanoke, VAJan 8, 1969 · N74388 · Substantial damage NTSB DIA68F0233Accident · Minor injuriesClosedBellanca 14-13 · Fredericksburg, VAJun 9, 1968 · N74422 · Substantial damage