NTSB investigations: Franklin 6A4150 series, MO

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, MO per year, 1964–2026: 7 cases
1964	1
1966	1
1967	1
1970	1
1976	1
1980	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" = 'MO' 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\" = 'MO' 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" = 'MO' 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 CEN17LA280Accident · No injuriesLimited investigationFinal reportStinson 108 · Lee's Summit, MOThe pilot’s loss of directional control during landing due to the failure of the right brake seal.Jul 21, 2017 · N8954K · Substantial damage NTSB MKC80DCG35Accident · No injuriesClosedStinson 108 · Liberty, MOJul 23, 1980 · N97350 · Substantial damage NTSB MKC76DCA26Accident · No injuriesClosedStinson 108-1 · Creve Coeur, MOMay 9, 1976 · N8614K · Substantial damage NTSB MKC71FCG08Accident · No injuriesClosedBellanca 14-13 · Waldron, MOJul 23, 1970 · N74201 · Substantial damage NTSB MKC68A0001Accident · 3 fatalClosedBellanca 14-13 · Viburnum, MOJul 1, 1967 · N74333 · Destroyed NTSB MKC66F0489Accident · Minor injuriesClosedStinson 108-1 · Waynesville, MOMar 31, 1966 · N8153K · Destroyed NTSB UNK64X0680Accident · No injuriesClosedStinson 108-1 · Grain Valley, MOFeb 23, 1964 · N97989 · Substantial damage