NTSB investigations: Continental TSIO-520 series, CA
245 cases on aircraft whose registry engine model is Continental TSIO-520 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 | 1 |
|---|---|
| 1969 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1974 | 2 |
| 1975 | 1 |
| 1976 | 7 |
| 1977 | 4 |
| 1978 | 4 |
| 1979 | 9 |
| 1980 | 10 |
| 1981 | 8 |
| 1982 | 9 |
| 1983 | 7 |
| 1984 | 7 |
| 1985 | 7 |
| 1986 | 3 |
| 1987 | 7 |
| 1988 | 5 |
| 1989 | 4 |
| 1990 | 3 |
| 1991 | 5 |
| 1992 | 2 |
| 1993 | 2 |
| 1994 | 1 |
| 1995 | 3 |
| 1996 | 4 |
| 1997 | 1 |
| 1998 | 2 |
| 1999 | 3 |
| 2000 | 2 |
| 2001 | 7 |
| 2002 | 6 |
| 2003 | 9 |
| 2004 | 4 |
| 2005 | 5 |
| 2006 | 9 |
| 2007 | 9 |
| 2008 | 6 |
| 2009 | 4 |
| 2010 | 3 |
| 2011 | 5 |
| 2012 | 7 |
| 2013 | 4 |
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 8 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 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.\"eventStateOrRegion\" = 'CA' 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 ('17040'))
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" = 'CA' 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 ('17040'))
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 WPR26LA340Accident · No injuriesClass 3 · LimitedPreliminary reportCessna P210N · San Luis Obispo, CAOn September 13, 2026, about 1515 Pacific daylight time, a Cessna P210N airplane, N4617W, was substantially damaged when it was involved in an accident near San Luis Obispo, California. The pilot, pilot-rated-passenger, and a passenger were not injured. The…NTSB WPR26LA124Accident · Minor injuriesClass 4 · LimitedFinal reportCessna T210 · Upland, CAThe pilot’s improper approach, which resulted in a long landing, runway excursion, and a nose over.NTSB WPR25LA282Accident · No injuriesClass 3 · LimitedPreliminary reportCessna P210N · Victorville, CAOn September 13, 2025, about 1300 Pacific daylight time, a Cessna P210N airplane, N25WD, was substantially damaged when it was involved in an accident near Victorville, California. The pilot and flight instructor were not injured. The airplane was operated as…NTSB WPR24LA157Accident · No injuriesClass 3 · LimitedFinal reportCessna P210 · Daggett, CAThe pilot’s failure to detect the tripped alternator circuit breaker in flight, which resulted in a drained battery that prevented the landing gear from fully extending to the down-and-locked position. Contributing to the accident was the improperly installed…NTSB WPR24LA133Accident · No injuriesClass 3 · LimitedFinal reportCessna T210 · Placerville, CAThe pilot’s loss of directional control during the landing roll.NTSB WPR24LA046Accident · Serious injuriesClass 3 · LimitedFinal reportCessna P210N · Big Bear, CAA loss of engine power during the initial climb for undetermined reasons, which resulted in an aborted takeoff and runway excursion.NTSB WPR24FA037Accident · 1 fatalClass 3 · FieldFinal reportCessna P210N · San Diego, CAA total loss of engine power due to fuel exhaustion. Contributing to the accident were the pilot’s inadequate flight and fuel planning and his decision to fly in night instrument meteorological conditions despite his lack of recent instrument flight.NTSB WPR24LA003Accident · No injuriesClass 3 · LimitedFinal reportCessna 340A · Hayward, CAThe pilot’s sudden incapacitation from effects of a previously undiagnosed underlying heart disease, which resulted in his loss of control of the airplane and subsequent impact with terrain.NTSB WPR23LA321Accident · No injuriesClass 3 · LimitedFinal reportCessna T210M · Napa, CAInsufficient hydraulic pressure to the landing gear system following the completion of the emergency gear extension checklist, which resulted in the main landing gear collapsing during landing. Contributing to the accident was a loss of electrical power for…NTSB WPR23LA234Accident · No injuriesClass 4 · LimitedFinal reportCessna P210N · Olivehurst, CAThe pilot’s failure to extend the landing gear before landing.NTSB WPR23LA174Accident · No injuriesClass 4 · LimitedFinal reportCessna T210N · San Luis Obispo, CAThe pilot’s failure to maintain directional control during the landing roll.NTSB WPR23LA098Accident · Serious injuriesClass 3 · LimitedFinal reportCessna T210N · Murrieta, CAA loss of engine power during the turn from base to final for undetermined reasons. Contributing to the accident was the pilot’s decision to not maintain traffic pattern altitude, which resulted in the off-airport landing.NTSB WPR23FA092Accident · 1 fatalClass 3 · FieldFinal reportCessna 414 · Modesto, CAThe pilot’s exceedance of the airplane’s critical angle of attack and failure to maintain proper airspeed during a turn to final, resulting in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the pilot’s distraction…NTSB WPR22LA228Accident · No injuriesClass 3 · LimitedFinal reportCessna P210N · Palm Springs, CAThe failure of the pilot to ensure the landing gear was down and locked before landing.NTSB WPR22LA181Accident · No injuriesClass 4 · LimitedFinal reportCessna 185 · Franklin, CAThe pilot’s failure to maintain directional control of the airplane during the landing roll.NTSB WPR22LA126Accident · No injuriesClass 4 · LimitedFinal reportCessna T210L · Lancaster, CAA total loss of engine power due to the pilot’s inadequate fuel management which resulted in fuel starvation and subsequent collision with a fence during landing.NTSB WPR22FA004Accident · 2 fatalClass 3 · FieldFinal reportCessna 340A · Santee, CALoss of control due to spatial disorientation.NTSB WPR21LA342Accident · Serious injuriesClass 4 · LimitedFinal reportBeech 58 · Palo Alto, CAThe fuelers addition of the incorrect fuel to the fuel tanks which resulted in a total loss of engine power.NTSB WPR21LA059Accident · No injuriesClass 3 · LimitedFinal reportCessna TU206 · Twentynine Palms, CAThe pilot’s decision to takeoff with a known mechanical engine anomaly, and the failure of the No. 2-cylinder exhaust valve, which resulted in a total loss of engine power during the initial climb and subsequent impact with terrain.NTSB WPR20LA325Accident · No injuriesClass 4 · LimitedFinal reportCessna T210 · Bridgeport, CAAn inadvertent retraction of the flaps during a go-around by the pilot-rated passenger, which caused the airplane to settle onto the runway with the landing gear retracted.NTSB WPR20LA123Accident · 1 fatalClass 3 · LimitedFinal reportCessna TU206 · Auburn, CAThe total loss of engine power after takeoff due to water contamination of the fuel.NTSB WPR20LA101Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 210 · Needles, CAA loss of engine power for undetermined reasons due to a lack of available evidence.NTSB WPR19LA231Accident · No injuriesClass 3 · LimitedFinal reportCessna P210 · Novato, CAThe pilots’ improper landing flare, which resulted in a hard landing and collapse of the nose landing gear.NTSB WPR19LA094Accident · No injuriesClass 3 · LimitedFinal reportCessna 402 · Montague, CAThe pilot’s failure to maintain directional control while landing on a wet/icy runway.NTSB WPR19FA079Accident · 5 fatalClass 3 · FieldFinal reportCessna 414 · Yorba Linda, CAThe pilot’s failure to maintain airplane control after entering instrument meteorological conditions (IMC) while climbing due to spatial disorientation, which resulted in the exceedance of the airplane’s design stress limits and subsequent in-flight break-up.…NTSB WPR19LA039Accident · No injuriesClass 3 · LimitedFinal reportBeech 36 · Los Banos, CAA partial loss of engine power for reasons that could not be determined based on the available information.NTSB WPR18LA264Accident · No injuriesLimited investigationFinal reportCessna T210 · San Luis Obispo, CAThe failure of the landing gear extension motor due to wear, which resulted in the right main landing gear not fully extending and locking into place during landing. Contributing to the accident was the pilot’s failure to ensure that all three landing gear…NTSB WPR18FA219Accident · 1 fatalField investigationFinal reportBeech A36TC · Sylmar, CAThe pilot's failure to maintain airplane control following a total loss of engine power for reasons that could not be determined based on the available information.NTSB WPR18FA211Accident · 5 fatalClass 2 · FieldFinal reportCessna 414 · Santa Ana, CAThe pilot’s failure to maintain adequate airspeed while maneuvering in the traffic pattern which resulted in an aerodynamic stall and subsequent spin at a low altitude, which the pilot was unable to recover from.NTSB GAA18CA271Accident · No injuriesData collectionFinal reportCessna P210 · Grass Valley, CAThe pilot’s improper landing flare, which resulted in a long landing and a runway excursion.NTSB GAA17CA581Accident · No injuriesData collectionFinal reportCessna 414 · San Jose, CAThe pilot’s failure to maintain a proper descent rate, which resulted in a hard landing.NTSB WPR17LA204Accident · No injuriesClass 3 · LimitedFinal reportCessna T210N · Watsonville, CAThe pilot’s improper landing flare, which resulted in a bounced landing and subsequent nose gear separation.NTSB WPR17LA172Accident · No injuriesLimited investigationFinal reportCessna T210F · Llano, CAA failure of the turbocharger that resulted in complete depletion of the engine oil and catastrophic internal failure of the engine. Contributing to the accident was improper and/or incomplete maintenance and inspection of the turbocharger.NTSB GAA17CA423Accident · No injuriesData collectionFinal reportCessna T210L · Yuba City, CAThe pilot’s failure to extend the landing gear before landing.NTSB WPR17LA090Accident · Minor injuriesLimited investigationFinal reportCessna T210N · Banning, CAThe pilot's improper energy management during an emergency landing approach that was prompted by an engine power loss. The specific reason(s) for the power loss and the improper energy management could not be determined based on available evidence.NTSB WPR17IA086Incident · No injuriesClass 3 · IncidentFinal reportBeech A36TC · Livermore, CAA mistrim condition while the autopilot was engaged for reasons that could not be determined based on available evidence, and the pilot’s subsequent failure to confirm the command bar status before disengaging the autopilot. Contributing to the accident were…NTSB WPR17FA066Accident · 4 fatalField investigationFinal reportCessna T310Q · Riverside, CAThe pilot's failure to maintain airplane control upon entering instrument meteorological conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall. Contributing to the accident was the pilot's personal pressure…NTSB WPR16LA066Accident · Minor injuriesLimited investigationFinal reportBeech B36TC · Santa Barbara, CAA total loss of engine power during initial climbout for reasons that could not be determined because postaccident examination and testing of the engine did not reveal any mechanical anomalies that would have precluded normal operation.NTSB WPR16LA058Accident · No injuriesLimited investigationFinal reportCessna 340A · Bakersfield, CAMaintenance personnel’s repeated failure to re-rig the main landing gear (MLG) in accordance with the airplane manufacturer's service manual requirements, which resulted in the collapse of the right MLG.NTSB GAA16CA065Accident · Minor injuriesData collectionFinal reportCessna T210N · Avalon, CAThe pilot's delay in aborting the landing, resulting in a runway overrun and nose over.NTSB WPR16LA031Accident · No injuriesLimited investigationFinal reportCessna 210 · Coalinga, CAA partial loss of engine power during takeoff for reasons that could not be determined, because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation.NTSB WPR14LA056Accident · No injuriesLimited investigationFinal reportCessna T210 - F · Oceanside, CAThe pilot's failure to determine the actual onboard fuel quantity before beginning the flight, which resulted in a complete loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's habitual reliance solely on the cockpit fuel…NTSB WPR13CA413Accident · No injuriesData collectionFinal reportCessna T310R · San Luis Obispo, CAThe pilot's inadvertent action of retracting the landing gear instead of the flaps during the landing roll, which resulted in the right main landing gear collapsing.NTSB WPR13LA274Accident · No injuriesLimited investigationFinal reportCessna T210L · Fresno, CAA hydraulic fluid leak in the nose landing gear actuator rod seal, which prevented the hydraulic system from building up sufficient pressure to fully retract or extend the main landing gear.NTSB WPR13LA184Accident · Serious injuriesLimited investigationFinal reportBeech A36TC · Big Bear City, CAThe improper overhaul of the propeller, which resulted in the installation of an incorrect propeller actuating pin and deformation of the ferrule hole and led to the pin’s fatigue failure. Contributing to the accident was the failure of multiple owners and…NTSB WPR12LA411Accident · No injuriesLimited investigationFinal reportCessna A185F · Cambria, CAA partial loss of engine power during cruise flight for reasons that could not be determined because the airplane sank in the ocean and was not recovered.NTSB WPR12LA414Accident · No injuriesLimited investigationFinal reportCessna T210N · Bakersfield, CAA partial loss of engine power during the initial climb due to an in-flight fire of undetermined origin.NTSB WPR12FA349Accident · 1 fatalField investigationFinal reportCessna P210N · Santa Monica, CAThe pilot's failure to maintain altitude during a return to the airport following an unspecified emergency; the nature of the emergency could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would…NTSB WPR12LA246Accident · No injuriesLimited investigationFinal reportBeech B36TC · Santa Ynez, CAA loss of engine power during initial climb due to fuel starvation. Contributing to the accident were the pilot’s inadequate preflight inspection, his failure to properly diagnose the loss of engine power, and his failure to follow the appropriate emergency…NTSB WPR12FA222Accident · Minor injuriesField investigationFinal reportCessna P210N · Glendale, CAThe partial loss of engine power during descent for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.