NTSB investigations: Continental TSIO-520 series
36 cases on aircraft whose registry engine model is Continental TSIO-520 series, where the defining event was Landing gear collapse. 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
| 2008 | 1 |
|---|---|
| 2009 | 2 |
| 2010 | 3 |
| 2011 | 3 |
| 2012 | 1 |
| 2013 | 4 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
| 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 c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17040')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e.\"isDefiningEvent\" AND e.\"tier2Number\" = '094'))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17040')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '094'))
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 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 CEN25LA407Accident · No injuriesClass 4 · LimitedFinal reportCessna 414 · Maryville, MOThe left landing gear collapsed on landing rollout due to a fractured retract bellcrank on the left landing gear lower fork assembly.NTSB WPR24LA126Accident · No injuriesClass 3 · LimitedFinal reportCessna P210N · Auburn, WAAn overstress fracture of the left main landing gear actuator, which resulted in the failure of the left main landing gear to fully extend and lock into place.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 WPR23LA012Accident · No injuriesClass 3 · LimitedFinal reportCessna T210L · Marana, AZA failure of a retaining ring in the airplane’s left main landing gear door actuator and the subsequent complete loss of hydraulic fluid, which resulted in a gear-up landing.NTSB ERA22LA434Accident · No injuriesClass 3 · LimitedFinal reportCessna 414 · Augusta, GAThe failure of the nose landing gear to fully extend and lock into position for reasons that could not be determined, which resulted in its collapse during landing.NTSB ERA22LA282Accident · No injuriesClass 3 · LimitedFinal reportCessna 414 · Jasper, GAThe failure of the owner to comply with a service bulletin, which resulted in the failure of the left main landing gear torque tube due to fatigue cracking.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 CEN22LA204Accident · No injuriesClass 3 · LimitedFinal reportCessna T210N · Denver, COThe main landing gear collapsed during landing for reasons that could not be determined.NTSB GAA22WA168Accident · No injuriesClass 5 · ForeignCessna 414A · Herzogenaurach, GermanyNTSB ERA21LA147Accident · No injuriesClass 3 · LimitedFinal reportCessna P210N · Johnstown, NYA failure of the landing gear system hydraulic pump assembly for reasons that could not be determined based on available evidence. Contributing was the pilot’s failure to confirm that the landing gear was down and locked before landing.NTSB ANC19LA039Accident · No injuriesClass 3 · LimitedFinal reportCessna 402 · Boise, IDA ductile overstress fracture failure of the right main landing gear bell crank assembly pivot bolt, which resulted in a collapse of the right main landing gear.NTSB WPR18LA057Accident · No injuriesLimited investigationFinal reportCessna T210L · Aurora, ORA collapse of the right main landing gear during the landing roll because the gear would not lock into place. Contributing to the accident was the pilot's failure to perform the alternate landing gear extension procedure before landing.NTSB WPR18LA022Accident · No injuriesLimited investigationFinal reportCessna P210N · Mount Vernon, WAThe failure of the right main landing gear (MLG) down-lock mechanism due to an out-of-tolerance down-lock hook, which resulted in the collapse of the right MLG during the landing roll.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 CEN17LA148Accident · No injuriesLimited investigationFinal reportCessna T210M · Detroit Lakes, MNThe malfunction of the right main landing gear actuator for reasons that could not be determined because postaccident examination revealed no mechanical anomalies that would have precluded normal operation. Contributing to the accident was the improper…NTSB CEN17LA022Accident · No injuriesLimited investigationFinal reportCessna T210L · Pflugerville, TXLanding gear collapse upon landing due to a hydraulic leak that led to insufficient pressure to fully extend and lock the gear in a down position.NTSB CEN16LA356Accident · No injuriesLimited investigationFinal reportCessna P210N · Waco, TXThe failure of the right main landing gear (MLG) down-lock mechanism, which resulted in the collapse of the landing gear. The root cause of the right MLG down-lock mechanism could not be determined because the components were not available for examination.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 ERA16LA042Accident · No injuriesLimited investigationFinal reportCessna P210 · Atlanta, GAThe pilot's delayed extension of the landing gear and his failure to ensure that the main landing gear (MLG) were down and locked before touchdown, which resulted in the collapse of both MLG. Contributing to the landing gear collapse was the mis-set landing…NTSB ERA15LA058Accident · No injuriesLimited investigationFinal reportCessna T210 · Tampa, FLThe collapse of the left main landing gear for reasons that could not be determined during postaccident examination.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 WPR13LA382Accident · No injuriesLimited investigationFinal reportCessna 206 · Boise, IDThe mechanical failure of the nose landing gear for reasons that could not be determined because impact damage prevented a complete examination.NTSB WPR13CA271Accident · No injuriesData collectionFinal reportCessna T210N · Salmon, IDThe pilot's decision to land on a wet grass airstrip, which resulted in a main landing gear collapse after a collision with rough terrain.NTSB CEN13LA208Accident · No injuriesLimited investigationFinal reportCessna 421C · Amarillo, TXMaintenance personnel's failure to detect the misadjustment of the left landing gear actuator's switch after recent maintenance, which prevented the landing gear from locking in the extended position and resulted in the landing gear collapsing during landing.NTSB ERA12IA559Incident · No injuriesIncident investigationFinal reportCessna 402B · Opa-Locka, FLThe pilot’s turning the airplane too sharply while exiting the runway, which resulted in the failure of the right main landing gear bellcrank due to an overstress fracture.NTSB CEN11LA494Accident · No injuriesLimited investigationFinal reportCessna T210L · Columbia, MOThe collapse of the right main landing gear during landing due to a lack of component lubrication, which resulted in the failure of the landing gear to lock once extended.NTSB CEN11LA357Accident · No injuriesLimited investigationFinal reportCessna T210M · Pueblo, COFailure of the landing gear to fully extend due to a failed o-ring in the nose gear actuator piston and a broken seal in the emergency landing gear extension system.NTSB WPR11LA108Accident · No injuriesLimited investigationFinal reportPiper PA-28-201T · Santa Ana, CAThe failure of the left main landing gear due to the lack of lubrication.NTSB WPR10LA476Accident · No injuriesLimited investigationFinal reportCessna 310R · Great Falls, MTThe uncommanded retraction of the right main landing gear during taxi due to the failure of the landing gear extension system to move the right main gear upper side link into the locked position for undetermined reasons.NTSB WPR10LA191Accident · No injuriesLimited investigationFinal reportBeech 58 · Santa Barbara, CAThe landing gear collapsing during the landing roll for undetermined reasons.NTSB WPR10LA147Accident · No injuriesLimited investigationFinal reportBeech 58 · Portland, ORThe overstress failure of a nose landing gear mechanism bolt, which precluded the nose gear retract brace assembly from locking the nose gear in the extended position and allowed the nose landing gear to collapse. Contributing to the accident was the failure…NTSB ERA09LA474Accident · No injuriesLimited investigationFinal reportCessna T210M · Dalton, GAThe failure of the right main landing gear actuator downlock spring.NTSB ERA09IA267Incident · No injuriesIncident investigationFinal reportCessna 402C · Nantucket, MAInstallation of an improper bearing in the landing gear actuator.NTSB SEA08LA079Accident · No injuriesLimited investigationFinal reportCessna P210N · Carefree, AZThe collapse of the landing gear during landing rollout for undetermined reasons.