Final NTSB investigations: Franklin 6V 350 series
155 cases on aircraft whose registry engine model is Franklin 6V 350 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 | 3 |
|---|---|
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 4 |
| 1968 | 6 |
| 1969 | 5 |
| 1970 | 8 |
| 1971 | 9 |
| 1972 | 10 |
| 1973 | 12 |
| 1974 | 8 |
| 1975 | 8 |
| 1976 | 7 |
| 1977 | 4 |
| 1978 | 9 |
| 1979 | 3 |
| 1980 | 1 |
| 1982 | 6 |
| 1984 | 2 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 4 |
| 1989 | 3 |
| 1990 | 3 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 1 |
| 1996 | 1 |
| 1997 | 4 |
| 1999 | 1 |
| 2001 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 1 |
| 2007 | 3 |
| 2008 | 1 |
| 2009 | 2 |
| 2010 | 3 |
| 2011 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2021 | 2 |
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.\"completionStatus\" = 'Completed'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27043'))
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."completionStatus" = 'Completed'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('27043'))
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 ERA22LA052Accident · No injuriesClass 4 · LimitedFinal reportMaule M-4-220C · Ridgeway, VAThe pilot’s improper fuel management which resulted in a loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot’s inadequate preflight inspection.NTSB ERA21LA155Accident · Minor injuriesClass 3 · LimitedFinal reportSocata MS894A · Monroe, GAMaintenance personnel’s failure to properly inspect and maintain the airplane’s engine cowling latches, which resulted in the in-flight separation of the engine cowling and a subsequent forced landing.NTSB CEN17LA375Accident · No injuriesLimited investigationFinal reportHiller UH 12A · Griffith, INThe loss of tail rotor thrust due to a failed tail rotor driveshaft, which resulted in a loss of tail rotor control and a hard landing.NTSB ERA17FA164Accident · 1 fatalField investigationFinal reportBell-Carson 47G Super C 4 · Timmonsville, SCThe pilot's decision to maneuver the helicopter at a low altitude near trees, which resulted in collision with the trees.NTSB GAA17CA176Accident · No injuriesData collectionFinal reportStump Great Lakes 2T 1A · Monongahela, PAThe pilot’s failure to maintain directional control of the airplane during the landing roll with crosswind conditions.NTSB GAA16CA141Accident · No injuriesData collectionFinal reportMaule M 4 · Anchorage, AKThe inadvertent rudder input by the passenger, resulting in a runway excursion during takeoff and collision with a taxiway sign.NTSB ERA14LA295Accident · No injuriesLimited investigationFinal reportMaule M4-220C · Cherryville, NCThe pilot’s improper landing flare, which resulted in a hard landing and subsequent main landing gear collapse.NTSB ERA13LA127Accident · Minor injuriesLimited investigationFinal reportHiller UH-12B · Merritt Island, FLA total loss of engine power due to fuel starvation, which resulted from an overstress failure of a fitting on the fuel supply line and led to an autorotation and hard landing.NTSB ERA12LA071Accident · No injuriesLimited investigationFinal reportSiai-Marchetti S205-22R · Okeechobee, FLA partial loss of engine power due to a failure of the drive bearings in the alternator drive system. Contributing to the accident was the inadequate maintenance.NTSB CEN11LA061Accident · Serious injuriesLimited investigationFinal reportSiai-Marchetti S.205/22R · Fruitvale, TXA total loss of engine power due to fuel exhaustion as a result of the pilot's inadequate fuel planning.NTSB ERA11FA021Accident · 1 fatalField investigationFinal reportSiai-Marchetti S.205/22R · Farmingdale, NYA loss of engine power during a low approach for undetermined reasons.NTSB CEN10CA087Accident · No injuriesData collectionFinal reportMaule M-4-220C · Pearsall, TXA total loss of engine power due to fuel exhaustion as a result of the pilot’s inadequate preflight planning.NTSB ANC09CA044Accident · No injuriesData collectionFinal reportMaule M-4-220C · Nenana, AKThe pilot's failure to maintain directional control while landing, resulting in a ground loop and substantial damage to the airplane.NTSB WPR09FA176Accident · 1 fatalField investigationFinal reportMaule M-4-220C · Hungry Horse, MTThe pilot's improper decision to continue flight into an area of reduced visibility and snow showers during cruise flight, which resulted in the pilot's spatial disorientation and subsequent loss of aircraft control.NTSB SEA08CA086Accident · No injuriesData collectionFinal reportMaule M-4 · Jerome, IDThe failure of both pilots to maintain directional control of the airplane during takeoff.NTSB ANC08LA003Accident · No injuriesLimited investigationFinal reportMaule M-5-220C · Aniak, AKThe pilot's improper fuel tank selection and fuel starvation, while doing touch-and-go landings.NTSB CHI07CA298Accident · Minor injuriesData collectionFinal reportMaule M-4-220C · Keene, NDThe pilot's failure to maintain control of the airplane during takeoff due to the high crosswind condition. Contributing factors were the high, gusting crosswind, and the tree.NTSB NYC07LA146Accident · No injuriesLimited investigationFinal reportBell-Carson 47G-Super C-4 · Wall Township, NJA total failure of the number one connecting rod during approach.NTSB LAX06LA109Accident · Minor injuriesLimited investigationFinal reportSIAI-Marchetti S.205/22R · Phoenix, AZa loss of engine power for undetermined reasons.NTSB LAX05CA260Accident · No injuriesData collectionFinal reportMaule M-4-220C · Tucson, AZthe pilot's failure to maintain directional control.NTSB SEA05LA101Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Driggs, IDThe pilot's failure to compensate for wind conditions, which resulted in a ground loop/swerve during the landing roll. A crosswind was a factor.NTSB CHI04LA137Accident · Minor injuriesLimited investigationFinal reportCessna 175 · Blissfield, MIThe pilot selected the wrong runway on which to land which resulted in exceeding the proper touchdown point during landing. Factors associated with the accident were the tailwind condition and the drainage ditch which the airplane contacted.NTSB NYC03LA159Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Taunton, MAThe pilot's failure to maintain directional control while landing and the CFI's delayed remedial action.NTSB ANC01FA095Accident · Serious injuriesField investigationFinal reportCessna 172 · Eagle River, AKThe fatigue induced fracture of a connecting rod wrist pin, resulting in a complete loss of engine power.NTSB LAX99LA133Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Prescott, AZThe pilot's inadequate compensation for the crosswind condition, which led to a loss of directional control and an inadvertent ground loop.NTSB ANC97LA142Accident · No injuriesLimited investigationFinal reportMaule ML-4-220C · Aniak, AKThe inadvertent swerve during landing on calm water. A factor was the pilot's lack of certification in single engine seaplanes.NTSB CHI97LA258Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Bemidgi, MNthe pilot's failure or inability to maintain directional control of the airplane, as a result of an undetermined anomaly concerning of the right main landing gear brake.NTSB LAX97LA211Accident · Serious injuriesLimited investigationFinal reportMaule M-4-220C · Gualala, CAcontinued VFR flight by the pilot into instrument meteorological conditions (IMC), and his failure to maintain sufficient altitude/clearance from tall trees. The weather conditions (low ceiling and fog) were related factors.NTSB FTW97LA205Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Englewood, COfailure of the pilot to maintain directional control of the airplane during the landing roll. The gusty crosswind condition was a related factor.NTSB CHI96LA213Accident · No injuriesLimited investigationFinal reportCessna 172 · Conway, MIA crack in the intake manifold which led to oil exhaustion and subsequent piston failure. A factor was the soft field.NTSB SEA94LA081Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Dubois, IDThe pilot's inadequate visual lookout. Factors include light conditions at dusk.NTSB LAX93FA272Accident · 1 fatalField investigationFinal reportBell 47G2-M · S. Sn Francisco, CAThe pilot's inadequate preflight planning/preparation which resulted in flight into high winds, turbulence and windshear.NTSB SEA92LA189Accident · Minor injuriesLimited investigationFinal reportHiller UH-12C · Concrete, WAThe loss of engine power due to fuel exhaustion, resulting from the IMPR0PER in-flight planning by the pilot in command and his failure to select a proper touchdown point for an emergency forced landing. A factor relating to the accident was the uneven…NTSB ANC91LA054Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Beluga, AKThe engine failure due to undetermined causes. Contributing to the accident was the unsuitability of the available landing area.NTSB SEA90LA145Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Missoula, MTPilot's failure to maintain directional control during the landing roll.NTSB MKC90LA117Accident · Serious injuriesLimited investigationFinal reportBell 47G · Wynne, ARLanding gear skid entangled with a fuel hose. A factor was the pilot's inadequate preflight inspection.NTSB MIA90LA112Accident · Minor injuriesLimited investigationFinal reportCessna 172D · Isla Grande, PRImproper use of carburetor heat by the pilot, which resulted in carburetor ice. The weather (carburetor icing condition) was a related factor.NTSB MIA90LA004Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Orlando, FLFailure of the left main landing gear.NTSB ANC89LA110Accident · Minor injuriesLimited investigationFinal reportMaule M-4-2205 · Beluga, AKThe pilot's failure to properly correct for a crosswind during landing which resulted in a loss of control.NTSB MIA89LA092Accident · No injuriesLimited investigationFinal reportBell 47G · Oklawaha, FLPilot's failure to properly control the helicopter during an attempted landing on the back of a truck. Contributing to the accident was the pilot's lack of experience in performing similar landings.NTSB ATL87LA229Accident · Minor injuriesLimited investigationFinal reportBell 47G (TOM CAT) · Dothan, ALThe plt rprtd that while he was making a turn-around over trees after the 1st swath run, the helicopter enctrd a sudden wind change. He stated that the wind cond was from a cumulus buildup which put him in a tailwind situation. As he completed his turn with…NTSB NYC87LA210Accident · Minor injuriesLimited investigationFinal reportBell 47G3 · Marston Mills, MAThe helicopter reached an altitude of about 50 feet when a loss of power was experienced. Immediately the pilot set up for an emergency landing and set the helicopter down. The aircraft, however, collided with the ground hard and incurred substantial damage.…NTSB NYC87LA182Accident · No injuriesLimited investigationFinal reportMaule M-4 · Wellsville, NYThe flight experienced a violent shimmy upon t/d and the acft veered to the right. The pilot made a go-around and experienced the same condition on the second t/d. on the third t/d, the pilot landed but was only able to maintain control of the acft until it…NTSB CHI87FA139Accident · 2 fatalField investigationFinal reportBell 47G · Dayton, MNAircraft collided with terrain after tailboom structure failed because of internal corrosion. The aircraft was not registered at the time of the accident and the pilot/operator failed to assure that proper or timely preventive maintenance was performed on the…NTSB SEA86LA164Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Juneau, AKThe acft veered left and ground looped during landing roll. The right main gear strut collapsed during the landing. The plt had 5 hours total flt time in this acft and stated the toe brakes seemed 'touchy' during the landing.NTSB NYC85FHJ05Accident · No injuriesFinal reportMaule M-4-220C · Somers, NYThe acft stalled & nosed over during an attempted go-around after a fast approach to a gravel landing strip which was 5 miles from the planned destination. The plt said he added power to go around when he thought his airspeed was too high. The acft dropped on…NTSB LAX84LA271Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Vacaville, CAThe flight was conducted for a sales demonstration. Both occupants were pilots. Two landings were performed by the acft owner. The third landing was performed by the prospective buyer and during touchdown the acft bounced. The owner applied power to recover.…NTSB MIA84LA103Accident · No injuriesLimited investigationFinal reportMaule M4-220 · Boca Raton, FLThe plt stated that while practicing touch & go's he lost directional control & the left landing gear collapsed.NTSB MIA83LA035Accident · Minor injuriesLimited investigationFinal reportMaule M-5-220C · Near Ocala, FLThe pilot reported that during flight, the engine stopped and the cockpit filled with smoke. He shut down fuel to the engine and started to glide toward an airport, but it was too FAR away. He then selected a field, but had to stay high on final approach to…NTSB CHI83LA027Accident · Serious injuriesLimited investigationFinal reportBell 47D1 · Georgetown, INThe pilot started to takeoff from area that was difficult to exit. He relanded once. During the 2nd attempt to fly out, the helicopter collided with trees and crashed. The pilot was not rated in helicopters, but he said he had soloed.