Fatal NTSB investigations: Franklin 6A4150 series
26 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
| 1966 | 2 |
|---|---|
| 1967 | 2 |
| 1969 | 1 |
| 1972 | 1 |
| 1975 | 1 |
| 1977 | 2 |
| 1978 | 1 |
| 1979 | 1 |
| 1984 | 2 |
| 1985 | 1 |
| 1986 | 1 |
| 1993 | 2 |
| 1996 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2005 | 1 |
| 2008 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2016 | 1 |
| 2025 | 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.\"highestInjuryLevel\" = 'Fatal'
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."highestInjuryLevel" = 'Fatal'
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 CEN25FA194Accident · 2 fatalClass 3 · FieldPreliminary reportUniversal Stinson 108 · Farmington, NCOn June 3, 2025, about 1145 eastern daylight time, a Universal Stinson 108 airplane, N40518 was destroyed when it was involved in an accident near Farmington, North Carolina. The pilot and one passenger were fatally injured, and one passenger was seriously…NTSB ERA17FA001Accident · 1 fatalField investigationFinal reportCulver PQ 14A · Hickory, NCThe loss of engine power due to carburetor icing. Contributing to the accident was the pilot's use of automobile gasoline, which increased the likelihood of carburetor icing.NTSB CEN11FA247Accident · 3 fatalField investigationFinal reportStinson 108 · Dickens, TXThe non-instrument rated pilot's decision to fly in night instrument meteorological conditions.NTSB ERA10LA442Accident · 1 fatalLimited investigationFinal reportStinson 108 · Andrews, SCLoss of engine power due to fuel exhaustion, and the student pilot's failure to adequately preflight the airplane prior to takeoff.NTSB WPR09LA022Accident · 1 fatalLimited investigationFinal reportStinson 108-1 · Concrete, WAThe loss of engine power during initial climb due to the pilot's improper exhaust system maintenance, which resulted in restriction of the carburetor's air intake.NTSB LAX05FA184Accident · 2 fatalField investigationFinal reportBellanca 14-13-3 · Caliente, CAThe pilot's inadvertent encounter with instrument meteorological conditions and failure to maintain adequate terrain clearance, which resulted in controlled flight into the terrain. Contributing factors were the pilots' delayed decision to reverse course, the…NTSB CHI03LA037Accident · 1 fatalLimited investigationFinal reportStinson 108-1 · Frankenmuth, MIThe pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall.NTSB CHI01LA137Accident · 1 fatalLimited investigationFinal reportBellanca 14-13-3 · Scott City, KSThe low level roll maneuver the pilot performed on final to runway 17 and his not maintaining clearance from terrain during the maneuver.NTSB MIA97FA014Accident · 1 fatalField investigationFinal reportBellanca 14-13-2 · Smithville, TNloss of engine power for undetermined reason(s), shortly after takeoff; and failure of the pilot to maintain adequate airspeed, while turning in an attempt to maneuver back to the airport, which resulted in an inadvertent stall and uncontrolled descent into…NTSB SEA93LA117Accident · 1 fatalLimited investigationFinal reportStinson 108-1 · Brigham City, UTThe premature liftoff by the PIC and his failure to attain proper rate of climb. Factors relating to the accident were the gusty crosswind weather conditions, the failure of the PIC to use all available runway, and transmission wires.NTSB SEA93LA054Accident · 1 fatalLimited investigationFinal reportStinson 108-2 · Fruit Heights, UTVFR flight into IMC conditions was attempted by the pilot. Factors include rain, snow, and fog.NTSB SEA86LA251Accident · 2 fatalLimited investigationFinal reportStinson 108-1 · Grangeville, IDPlt called fss over lws for wx brief lws-bke-boi. VFR not recommended for route, mountains obscured in rain showers. Plt called fss 30 min later, reported lost in clouds attempting route. Radio contact lost before location established (2305 MST, 04-26-86).…NTSB SEA86FA034Accident · 2 fatalField investigationFinal reportStinson 108 · Hoquiam, WAThe acft contacted terrain 680 ft north of rwy 06 at bowerman airfield. The acft departed elma arpt, ocean shores, WA, sometime around 2330 PST, on 12-29-85. Prior to the departure the passenger stated to persons they were waiting for the fog to clear for…NTSB LAX85FA038Accident · 1 fatalField investigationFinal reportStinson Voyager 150 · Meadow Vista, CAThe acft collided with terrain while maneuvering northeast of auburn airport during a VFR personal flt. The plt advised sacramento TRACON that he had auburn arpt in sight. However, TRACON observed N97638 fly over & pass auburn arpt in a northerly direction &…NTSB SEA84FA032Accident · 1 fatalField investigationFinal reportStinson 108-1 · Vashon, WAJust after taking off in IMC at night, the acft crashed near the departure end of rwy 36. According to a witness, the acft climbed after takeoff to about 200 ft above the trees, then entered a descent & disappeared behind a tree line. After crashing, the acft…NTSB LAX79FA029Accident · 2 fatalClosedBellanca 14-13 · Compton, CANTSB IAD78DA042Accident · 1 fatalClosedStinson 108 · Ocean City, MDNTSB LAX77FUJ78Accident · 3 fatalClosedBellanca 14-13 · Mesa, AZNTSB CHI77EEP48Accident · 1 fatalClosedBellanca 14-13 · Prairie Du Chn, WINTSB CHI76AC015Accident · 1 fatalClosedBellanca 14-13 · Alma, MINTSB MIA73AM041Accident · 2 fatalClosedStinson 108-1 · Ocala, FLNTSB OAK70A0006Accident · 4 fatalClosedStinson 108 · Searchlight, NVNTSB MIA68A0044Accident · 1 fatalClosedLuscombe 8C · Temple Terrac, FLNTSB MKC68A0001Accident · 3 fatalClosedBellanca 14-13 · Viburnum, MONTSB OAK66A0060Accident · 2 fatalClosedStinson 108-1 · Samoa, CANTSB SEA66A0048Accident · 1 fatalClosedStinson 108 · Port Angeles, WA