NTSB investigations: Franklin 6A4150 series, 2013
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.
Cases per year
| 1964 | 30 |
|---|---|
| 1965 | 26 |
| 1966 | 26 |
| 1967 | 27 |
| 1968 | 16 |
| 1969 | 18 |
| 1970 | 19 |
| 1971 | 14 |
| 1972 | 12 |
| 1973 | 14 |
| 1974 | 14 |
| 1975 | 16 |
| 1976 | 11 |
| 1977 | 16 |
| 1978 | 7 |
| 1979 | 4 |
| 1980 | 6 |
| 1981 | 4 |
| 1982 | 5 |
| 1983 | 4 |
| 1984 | 6 |
| 1985 | 4 |
| 1986 | 3 |
| 1987 | 9 |
| 1988 | 5 |
| 1989 | 6 |
| 1990 | 3 |
| 1991 | 4 |
| 1992 | 3 |
| 1993 | 2 |
| 1994 | 2 |
| 1996 | 5 |
| 1997 | 2 |
| 1998 | 3 |
| 1999 | 2 |
| 2000 | 1 |
| 2001 | 5 |
| 2002 | 2 |
| 2003 | 7 |
| 2004 | 3 |
| 2005 | 3 |
| 2006 | 2 |
| 2007 | 2 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 3 |
| 2011 | 5 |
| 2012 | 3 |
| 2013 | 7 |
| 2014 | 1 |
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 3 |
| 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 year(c.\"eventDate\") = 2013
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 year(c."eventDate") = 2013
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" 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 WPR14LA079Accident · No injuriesLimited investigationFinal reportStinson 108 1 · Lodi, CAThe fatigue failure of the crankshaft, which resulted in a total loss of engine power and subsequent forced landing.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.NTSB ERA13LA327Accident · Minor injuriesLimited investigationFinal reportUnivair 108-1 · Tuftonboro, NHMaintenance personnel’s failure to remove circumferential gouges in the aft radius of the R2 rod journal on the crankshaft during its last engine overhaul, which resulted in the fatigue failure of the crankshaft and a subsequent total loss of engine power.NTSB CEN13CA412Accident · No injuriesData collectionFinal reportUniversal Stinson 108-1 · Hector, MNThe pilot’s inadvertent application of the brakes and failure to main directional control of the airplane during the takeoff roll, which resulted in the airplane nosing over.NTSB ERA13LA269Accident · Minor injuriesLimited investigationFinal reportStinson 108 · Elkton, KYThe pilot's failure to use carburetor heat during the approach to landing, which resulted in carburetor icing and a partial loss of engine power during a subsequent initial climb.NTSB CEN13CA317Accident · No injuriesData collectionFinal reportStinson 108 · Lebanon, INThe pilot did not maintain control of the airplane during the landing roll.NTSB CEN13CA284Accident · No injuriesData collectionFinal reportStinson 108-1 · Cambridge, MNThe pilot’s loss of directional control while landing with a gusting crosswind.