NTSB investigations: Franklin 6A4165 series, CO
15 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.
Cases per year
| 1968 | 2 |
|---|---|
| 1972 | 1 |
| 1973 | 1 |
| 1976 | 1 |
| 1983 | 1 |
| 1989 | 2 |
| 2002 | 1 |
| 2003 | 1 |
| 2014 | 1 |
| 2016 | 1 |
| 2020 | 2 |
| 2026 | 1 |
Where
Open the mapLatest cases
Query with SQL
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\" = 'CO' 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" = 'CO' 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" DESCRun 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 CEN26LA087Accident · Minor injuriesClass 3 · LimitedPreliminary reportStinson 108-3 · Gypsum, COOn January 11, 2026, at 1408 mountain standard time, a Stinson 108-3 airplane, N6725M, sustained substantial damage when it was involved in an accident near Gypsum, Colorado. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of…NTSB CEN20LA345Accident · No injuriesClass 3 · LimitedFinal reportStinson 108 · Glenwood Springs, COThe pilot’s loss of directional control upon landing due to a sheared tailwheel locking pin.NTSB CEN20CA204Accident · No injuriesClass 4 · Data collectionFinal reportStinson 108 · Denver, COThe pilot’s failure to maintain directional control while landing during variable wind conditions.NTSB GAA17CA015Accident · No injuriesData collectionFinal reportStinson 108 · Rifle, COThe pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion.NTSB CEN14CA183Accident · No injuriesData collectionFinal reportStinson 108 · Broomfield, COThe pilot's failure to maintain directional control during the landing, which resulted in the airplane departing the runway and nosing over.NTSB DEN03LA036Accident · No injuriesLimited investigationFinal reportStinson 108-2 · Elbert, COthe pilot's inability to maintain aircraft control resulting in the ground loop. Factors relating to the accident were the crosswinds and the wind gusts.NTSB DEN02LA062Accident · No injuriesLimited investigationFinal reportStinson 108-3 · Falcon, COthe pilot's failure to maintain aircraft control during the takeoff roll and subsequent abort. Factors relating to the accident were the gusting crosswinds and the unsuitable terrain encountered when the airplane departed the runway.NTSB DEN90LA019Accident · No injuriesLimited investigationFinal reportUniversal Stinson 108-3 · Fort Collins, COInadequate compensation for wind conditons by the pilot which resulted in his failure to maintain directional control. Factors related to the accident were: the unfavorable wind condition and soft terrain.NTSB DEN89LA107Accident · No injuriesLimited investigationFinal reportStinson 108-3 · Aurora, COThe inadequate compensation for wind conditions by the pilot. Lack of recent experience in the type of aircraft is considered a contributing factor.NTSB DEN83LA088Accident · Minor injuriesLimited investigationFinal reportStinson 108-2 · Aspen, COWhile inbound, the plt checked the ATIS which was reporting a wind from 350 deg at 10 KTS. He continued inbound, and when he checked with the tower, the wind was from 350 deg at 6 KTS. The plt was cleared to land on the rwy of his choice, he stated that he…NTSB DEN76FTE95Accident · No injuriesClosedStinson 108-2 · Peyton, CONTSB DEN74DTE29Accident · No injuriesClosedStinson 108-3 · Kiowa, CONTSB DEN72DTE58Accident · No injuriesClosedStinson 108-3 · Lamar, CONTSB DEN69F0122Accident · Minor injuriesClosedStinson 108-2 · Aurora, CONTSB DEN69D0088Accident · Minor injuriesClosedStinson 108-2 · Aurora, CO