NTSB investigations: Continental IO-520 series, TX
344 cases on aircraft whose registry engine model is Continental IO-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
| 1964 | 2 |
|---|---|
| 1965 | 3 |
| 1966 | 6 |
| 1967 | 9 |
| 1968 | 5 |
| 1969 | 8 |
| 1970 | 5 |
| 1971 | 5 |
| 1972 | 4 |
| 1973 | 6 |
| 1974 | 13 |
| 1975 | 10 |
| 1976 | 11 |
| 1977 | 11 |
| 1978 | 8 |
| 1979 | 9 |
| 1980 | 15 |
| 1981 | 13 |
| 1982 | 10 |
| 1983 | 3 |
| 1984 | 7 |
| 1985 | 4 |
| 1986 | 4 |
| 1987 | 6 |
| 1988 | 5 |
| 1989 | 7 |
| 1990 | 4 |
| 1991 | 5 |
| 1993 | 5 |
| 1994 | 3 |
| 1995 | 9 |
| 1996 | 7 |
| 1997 | 2 |
| 1998 | 3 |
| 1999 | 1 |
| 2000 | 6 |
| 2001 | 6 |
| 2002 | 3 |
| 2003 | 3 |
| 2004 | 5 |
| 2005 | 9 |
| 2006 | 4 |
| 2007 | 5 |
| 2008 | 2 |
| 2009 | 6 |
| 2010 | 6 |
| 2011 | 5 |
| 2012 | 6 |
| 2013 | 4 |
| 2014 | 7 |
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 5 |
| 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\" = 'TX' 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 ('17032'))
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" = 'TX' 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 ('17032'))
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 CEN27LA028Accident · No injuriesClass 3 · LimitedInvestigation openCessna P206 · Nacogdoches, TXNTSB CEN26LA091Accident · Minor injuriesClass 4 · LimitedFinal reportBellanca 17-30A · Burnet, TXThe pilot’s improper judgement to relinquish his pilot responsibilities to the passenger with the engine operating, which resulted in a loss of airplane control and impact with a parked vehicle.NTSB CEN26LA028Accident · No injuriesClass 4 · LimitedFinal reportBeech A36 · Hondo, TXThe pilot’s failure to extend the landing gear before landing due to distraction and his failure to conduct the Before Landing checklist.NTSB CEN25LA301Accident · No injuriesClass 4 · LimitedFinal reportCessna U206G · Kerrville, TXThe pilot’s failure to confirm the fuel quantity before flight which resulted in a loss of engine power due to fuel starvation.NTSB CEN25LA185Accident · No injuriesClass 4 · LimitedFinal reportCessna 401 · Arlington, TXThe failure of the left landing gear system and subsequent intentional gear up landing.NTSB CEN25LA182Accident · No injuriesClass 3 · LimitedPreliminary reportBeech F33A · Houston, TXOn May 16, 2025, about 1459 central daylight time, a Beech F33A airplane, N6376S, was destroyed when it was involved in an accident near Houston, Texas. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91…NTSB CEN25LA131Accident · No injuriesClass 4 · LimitedFinal reportCessna P206 · Frankston, TXThe pilot’s failure to maintain directional control during the landing with a gusting crosswind.NTSB CEN24LA152Accident · No injuriesClass 4 · LimitedFinal reportBellanca 17-30A · Galveston, TXMaintenance personnel’s failure to properly secure the oil filter adapter when replacing the oil filter adapter gasket which resulted in the filter becoming loose, resulting in the loss of engine oil, and the subsequent total loss of engine power.NTSB CEN24FA089Accident · 3 fatalClass 3 · FieldFinal reportCessna 310R · Poolville, TXPilot incapacitation for undetermined reasons which resulted into controlled descent into terrain.NTSB CEN23LA379Accident · No injuriesClass 4 · LimitedFinal reportBeech S35 · Houston, TXAn in-flight collision with a bird.NTSB CEN23LA231Accident · No injuriesClass 3 · LimitedFinal reportCessna 207 · Harlingen, TXThe improper installation of the throttle control arm to the throttle control cable attachment end, which resulted in a failure of the control arm and a loss of engine power in flight.NTSB CEN23LA131Accident · No injuriesClass 4 · LimitedFinal reportBeech E-55 · Tomball, TXAn inflight collision with a bird.NTSB CEN22LA233Accident · No injuriesClass 3 · LimitedFinal reportBeech A36 · Amarillo, TXThe loss of engine power due to a leak in the fuel control assembly. Contributing to the accident was the inadequate maintenance of the fuel control assembly.NTSB CEN22LA104Accident · No injuriesClass 4 · LimitedFinal reportBeech V35B · McKinney, TXThe pilot’s failure to maintain control during the landing with gusty wind.NTSB CEN22LA018Accident · No injuriesClass 3 · LimitedFinal reportCessna 210 · Dallas, TXA temporary loss of engine power during the takeoff due to a damaged fuel pump, which resulted in a forced landing and a runway excursion. The source of the damage to the fuel pump could not be determined.NTSB CEN21LA391Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 320 · Windthorst, TXA forced landing due to a loss of engine power on the right engine for a reason that could not be determined based on the available evidence.NTSB CEN21LA382Accident · No injuriesClass 3 · LimitedFinal reportBeech A36 · Granbury, TXThe loss of engine power for reasons that could not be determined with the available information.NTSB CEN21LA317Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Blanco, TXThe unexpected change in wind speed and direction during the landing which resulted a runway overrun.NTSB CEN21LA050Accident · No injuriesClass 4 · LimitedFinal reportBellanca 1730 · San Saba, TXThe student pilot’s improper decision-making, which resulted in a total loss of engine power due to fuel starvation.NTSB CEN20LA420Accident · No injuriesClass 3 · LimitedFinal reportBeech V35 · Terrell, TXFuel starvation due to a fuel system leak, which resulted in a loss of engine power and the subsequent forced landing on unsuitable terrain.NTSB CEN20LA338Accident · Minor injuriesClass 3 · LimitedFinal reportCessna A185F · Sugar Land, TXA total loss of engine power after takeoff for undetermined reasons, and the pilot’s subsequent exceedance of the airplane’s critical angle of attack during landing, which resulted in an aerodynamic stall.NTSB CEN20FA076Accident · 1 fatalClass 3 · FieldFinal reportBeech 33 · Granbury, TXThe pilot's exceedance of the airplane's critical angle of attack while maneuvering in the airport traffic pattern, which resulted in an aerodynamic stall and loss of control.NTSB CEN19TA073Accident · Serious injuriesFinal reportBeech A36 · Fort Worth, TXThe pilot's improper fuel management, which resulted in fuel starvation and a loss of engine power.NTSB CEN19LA055Accident · 1 fatalClass 3 · LimitedFinal reportBeech 36 · Fredericksburg, TXThe loss of engine power due to fatigue failure of the crankshaft.NTSB GAA19CA011Accident · Minor injuriesData collectionFinal reportBeech 55 · San Antonio, TXThe pilot's improper takeoff trim setting and failure to properly secure his seatbelt, which resulted in a loss of airplane control. Contributing to the accident was the pilot's failure to follow the Before Takeoff checklist.NTSB GAA19CA004Accident · No injuriesData collectionFinal reportCessna 310 · Marathon, TXThe pilot's failure to see and avoid a cow on the airstrip during landing.NTSB CEN18LA276Accident · No injuriesLimited investigationFinal reportBeech V35 · Katy, TXMaintenance personnel’s failure to remove a paper towel from the engine during recent maintenance, which resulted in oil starvation, the failure of a connecting rod, and a catastrophic engine failure and subsequent total loss of engine power.NTSB CEN18LA229Accident · Serious injuriesLimited investigationFinal reportCessna T210F · Desdemona, TXThe total loss of engine power due to the fuel pump’s fuel flow setting being set too high, which resulted in an excessive fuel flow to the engine.NTSB CEN18LA213Accident · Serious injuriesLimited investigationFinal reportBeech F33A · Uvalde, TXThe loose oil filter, which resulted in oil starvation and a total loss of engine power in flight.NTSB CEN18LA084Accident · Serious injuriesLimited investigationFinal reportBeech A36 · Abilene, TXMaintenance personnel’s improper maintenance of the engine, which resulted in a catastrophic engine failure due the shifting/slipping of the No. 2 bearing and the subsequent oil starvation and total loss of engine power during cruise flight.NTSB CEN18LA010Accident · No injuriesLimited investigationFinal reportBellanca 17-30A · Sweetwater, TXThe loss of engine power during a precautionary approach for landing for reasons that could not be determined based on the available information.NTSB CEN17LA255Accident · No injuriesLimited investigationFinal reportBeech A36 · El Paso, TXA partial loss of engine power for reasons that could not be determined because a postaccident examination did not reveal any anomalies that would have precluded normal engine operation.NTSB GAA17CA031Accident · No injuriesData collectionFinal reportBellanca 17 30 · Burnet, TXThe pilot’s decision to continue the unstabilized approach and his failure to extend the landing gear before landing.NTSB CEN16CA359Accident · No injuriesData collectionFinal reportBeech 58 · Wichita Falls, TXThe incorrect maintenance of the airplane's ventilation system which resulted in an obstruction of the elevator control system.NTSB CEN16LA336Accident · No injuriesLimited investigationFinal reportBeech E-55 · Wichita Falls, TXThe failure of the landing gear assembly snap ring, which prevented the pilot from being able to extend the landing gear and resulted in a gear-up landing. Also causal was the lack of the assembly's overhaul in accordance with the airplane maintenance manual.NTSB GAA15CA295Accident · No injuriesData collectionFinal reportBeech V35B · Houston, TXThe pilot's failure to properly secure the cabin door prior to takeoff, resulting in the door opening during takeoff, an aborted takeoff, runway overrun, and collision with terrain.NTSB CEN15LA336Accident · Minor injuriesLimited investigationFinal reportBeech A36 · Austin, TXA total loss of engine power due to an excessively rich fuel mixture as a result of the improper adjustment of the fuel pump aneroid.NTSB CEN15LA366Accident · No injuriesLimited investigationFinal reportCessna 206 · Pecos, TXThe pilot's inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.NTSB CEN15LA137Accident · Serious injuriesLimited investigationFinal reportBeech A36 · Andrews, TXThe pilot's failure to note that icing conditions existed in the airport area despite having received that information in a preflight briefing, which resulted in his flight into an area of icing and the subsequent loss of airplane control due to ice…NTSB CEN15FA081Accident · 1 fatalField investigationFinal reportBeech V35A · Seagoville, TXThe pilot’s loss of control and subsequent impact with terrain in instrument meteorological conditions.NTSB CEN14LA354Accident · No injuriesLimited investigationFinal reportBeech A36 · San Antonio, TXThe failure of the landing gear retract rod.NTSB CEN14LA331Accident · No injuriesLimited investigationFinal reportCessna A188 · Arlington, TXThe total loss of engine power due to a loose oil filter adapter, which resulted in oil starvation. Contributing to the accident was maintenance personnel’s failure to comply with a Federal Aviation Administration airworthiness directive.NTSB CEN14LA263Accident · No injuriesLimited investigationFinal reportAero Commander 200D · La Grange, TXThe loss of engine power due to oil starvation for reasons that could not be determined based on the available evidence.NTSB CEN14LA253Accident · No injuriesLimited investigationFinal reportBeech A36 · Rockdale, TXA loss of engine power for reasons that could not be determined because postaccident testing revealed no anomalies.NTSB CEN14FA219Accident · 1 fatalField investigationFinal reportBellanca 17 30A · Sweetwater, TXThe pilot’s inadequate inflight fuel management, which led to a loss of engine power due to fuel exhaustion or starvation.NTSB CEN14CA177Accident · No injuriesData collectionFinal reportCessna A185F · Fredericksburg, TXThe pilot did not maintain directional control of the airplane during the takeoff with a gusting crosswind.NTSB CEN14LA002Accident · Serious injuriesLimited investigationFinal reportBeech S35 · Brownwood, TXA loss of engine power due to fuel starvation, which resulted from a foreign material in the fuel system blocking the fuel flow to the engine.NTSB WPR14CA009Accident · Serious injuriesData collectionFinal reportBeech A36 · Tilden, TXThe pilot's decision to continue the takeoff from a wet and soft airstrip which resulted in his failure to maintain adequate airspeed and aircraft control during the takeoff initial climb.NTSB CEN13FA476Accident · 2 fatalField investigationFinal reportBeechcraft F33A · Ennis, TXThe loss of engine power for reasons that could not be determined during postaccident examinations due to postcrash fire damage.NTSB CEN13CA207Accident · No injuriesData collectionFinal reportBeech A36 · Fort Stockton, TXThe student pilot inadvertently switching the fuel selector to the OFF position and the flight instructor's failure to monitor the student pilot's actions.