NTSB investigations: Franklin 6A4165 series, ME

6 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

19722026

NTSB investigations: Franklin 6A4165 series, ME per year, 1972–2026: 6 cases
1972	2
1975	1
1977	1
1993	1
2004	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" = 'ME' 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\" = 'ME' 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" = 'ME' 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 NYC04LA060Accident · No injuriesLimited investigationFinal reportStinson 108-3 · Sanford, MEAn engine fire for undetermined reasons during start-up.Jan 25, 2004 · N6234M · Destroyed NTSB NYC93LA070Accident · No injuriesLimited investigationFinal reportStinson 108-2 · Norridgewock, METhe pilot at the controls failed to maintain directional control of the airplane, and the flight instructor provided inadequate supervision. A related factor was the pilot at the controls had no flight experience in the make and model of airplane being flown.Apr 6, 1993 · N8775K · Substantial damage NTSB NYC77FNC55Accident · No injuriesClosedStinson 108-3 · Saco, MESep 11, 1977 · N6678M · Substantial damage NTSB NYC76DNC08Accident · Minor injuriesClosedStinson 108 · Bangor, MEAug 10, 1975 · N9368K · Substantial damage NTSB NYC72FNC42Accident · Serious injuriesClosedStinson 108-3 · Princeton, MEApr 30, 1972 · N6070M · Substantial damage NTSB NYC72FNC21Incident · 1 fatalClosedStinson 108-3 · Princeton, MEJan 7, 1972 · N6070M · Minor damage