NTSB investigations: Continental IO-520 series
55 cases on aircraft whose registry engine model is Continental IO-520 series, where the defining event was Landing gear not configured. 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
| 2009 | 2 |
|---|---|
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 7 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 | 3 |
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 ('17032')
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\" = '095'))
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 ('17032')
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" = '095'))
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 ANC26LA085Accident · No injuriesClass 4 · LimitedInvestigation openBeech 36 · Port Alsworth, AKNTSB CEN26LA262Accident · No injuriesClass 4 · LimitedFinal reportBeech F33A · Janesville, WIThe pilot’s failure to extend the landing gear before landing.NTSB WPR26LA171Accident · No injuriesClass 4 · LimitedFinal reportCessna 210 · Redding, CAThe pilot’s failure to extend the landing gear before landing due to distraction and his failure to conduct the before landing checklist.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 WPR26LA016Accident · No injuriesClass 4 · LimitedFinal reportBeech S35 · Olympia, WAThe pilot’s inadvertent retraction of the landing gear after landing.NTSB CEN25LA319Accident · No injuriesClass 4 · LimitedFinal reportBeech S35 · Lowell, MIThe pilot’s failure to extend the landing gear before landing.NTSB GAA25WA230AccidentClass 5 · ForeignBeech A36 · Montevideo, UruguayNTSB CEN25LA185Accident · No injuriesClass 4 · LimitedFinal reportCessna 401 · Arlington, TXThe failure of the left landing gear system and subsequent intentional gear up landing.NTSB ERA25LA094Accident · No injuriesClass 4 · LimitedFinal reportBeech 58 · Florence, SCThe pilot’s failure to follow the emergency procedures and extend the landing gear manually after the landing gear did not initially extend normally.NTSB CEN25LA017Accident · No injuriesClass 4 · LimitedFinal reportBeech 58 · Shreveport, LAThe pilot’s inadvertent failure to lower the landing gear before touching down.NTSB CEN24LA307Accident · No injuriesClass 4 · LimitedFinal reportBeech 58 · Kalamazoo, MIThe pilot’s failure to extend the landing gear before landing.NTSB CEN24LA264Accident · No injuriesClass 4 · LimitedFinal reportCessna 210 · Mount Vernon, ILThe pilot’s failure to lower the landing gear, resulting in a wheel up landing. Contributing to the accident was the intermittent warning horn which likely did not sound to warn the pilot about the misconfigured landing gear.NTSB ERA24LA193Accident · No injuriesClass 4 · LimitedFinal reportBeech E-55 · Greenville, SCThe pilot’s failure to extend the landing gear before landing.NTSB ERA24LA226Accident · No injuriesClass 4 · LimitedFinal reportBeech A36 · Griffin, GAThe pilot’s failure to extend the airplane’s landing gear before landing.NTSB ERA24LA049Accident · No injuriesClass 4 · LimitedFinal reportBeech A36 · Valdosta, GAThe pilot’s failure to extend the landing gear before landing.NTSB WPR23LA342Accident · No injuriesClass 4 · LimitedFinal reportCessna T210H · Santa Rosa, CAThe pilot’s failure to configure the landing gear during the landing approach.NTSB WPR23LA331Accident · No injuriesClass 4 · LimitedFinal reportBeech N35 · Ennis, MTThe pilot's failure to extend the landing gear before landing.NTSB CEN22LA407Accident · No injuriesClass 4 · LimitedFinal reportBeech 36 · Tupelo, MSThe pilot’s failure to extend the landing gear for a landing.NTSB WPR21LA334Accident · No injuriesClass 4 · LimitedFinal reportBellanca 17-30A · Hurricane, UTThe pilot's failure to extend the landing gearNTSB ERA21LA315Accident · No injuriesClass 4 · LimitedFinal reportCessna 210N · Somerville, NJThe pilot’s failure to extend the landing gear, which resulted in a gear up landing and substantial damage to the fuselage.NTSB WPR21LA028Accident · No injuriesClass 4 · LimitedFinal reportCessna T210K · Los Alamos, NMThe pilot’s failure to extend the landing gear, which resulted in the airplane landing with the landing gear retracted.NTSB CEN20CA164Accident · Minor injuriesClass 4 · Data collectionFinal reportCessna A185 · Anoka, MNThe pilot's inadvertent extension of the landing gear and his subsequent water landing with the wheels extended.NTSB GAA20CA084Accident · No injuriesData collectionFinal reportBeech 55 · Broomfield, COThe pilot's unintentional retraction of the landing gear during the landing roll.NTSB GAA19CA358Accident · No injuriesData collectionFinal reportBeech 35 · Bowie, MDThe pilot's failure to extend the landing gear before landing.NTSB WPR19FA152Accident · 1 fatalClass 3 · FieldFinal reportCessna A185 · Whittier, AKThe pilot’s failure to configure the landing gear for a water landing, which resulted in a nose-over. Contributing to the accident was the pilot's distraction due to his talking passengers.NTSB ERA19TA129Accident · No injuriesClass 3Final reportBeech E55 · St. Petersburg, FLThe pilot's failure to extend the landing gear, which resulted in a gear-up landing.NTSB WPR18LA209Accident · No injuriesClass 3 · LimitedFinal reportCessna 402 · Fort Lauderdale, FLThe failure of the left starter relay, which resulted in a loss of electrical power during the flight and the failure of the T-handle from the cable led to a forced landing with the landing gear retracted.NTSB GAA18CA115Accident · No injuriesData collectionFinal reportCessna 210 · Sussex, NJThe pilot’s inadvertent landing gear retraction during approach.NTSB CEN17LA212Accident · No injuriesLimited investigationFinal reportCessna 210F · Anoka, MNThe failure of the landing gear to fully extend due to insufficient hydraulic fluid in the hydraulic system as a result of inadequate maintenance by the airplane owner.NTSB ERA17LA189Accident · No injuriesLimited investigationFinal reportBeech 58 · Augusta, GAThe pilot’s failure to properly configure the airplane for landing. Contributing to the accident were the pilot’s fatigue and self-induced distractions.NTSB CEN17LA091Accident · No injuriesLimited investigationFinal reportBeech 95-C55 · Delta, COThe failure of the landing gear to extend during landing approach due to the interference between the landing gear motor's sector and worm gears.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 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 GAA16CA375Accident · No injuriesData collectionFinal reportCessna A185 · Hayden Lake, IDThe pilot's failure to retract the amphibious airplane's land-wheels prior to landing on a lake, which resulted in a nose over.NTSB GAA16CA161Accident · No injuriesData collectionFinal reportBeech 58 · Huntsville, ALThe pilot's failure to extend the landing gear prior to touchdown resulting in a landing with the landing gear retracted and consequent substantial damage.NTSB ERA16CA093Accident · No injuriesData collectionFinal reportCessna 210 · Venice, FLThe pilot's failure to properly configure the landing gear, which resulted in a landing with the landing gear in the retracted position.NTSB GAA15CA222Accident · No injuriesData collectionFinal reportCessna A185F · Emily, MNThe pilot's failure to retract the landing gear, which resulted in a gear down water landing and a nose over.NTSB ERA15LA273Accident · No injuriesLimited investigationFinal reportBeech 35-C33 · Wilmington, NCThe pilot's failure to ensure that the landing gear was in the down and locked position before touchdown, which resulted in a landing with the gear in transit.NTSB CEN15CA049Accident · No injuriesData collectionFinal reportCessna 210 · Kalamazoo, MIThe pilot's failure to ensure that the landing gear was fully extended in the down and locked position prior to touchdown, which resulted in the left main landing gear collapse, runway excursion, and impact with a runway exit sign.NTSB ERA14CA157Accident · No injuriesData collectionFinal reportCessna 210N · Marathon, FLThe pilot's failure to ensure that the airplane's landing gear was down and locked prior to touchdown. Contributing to the accident was the possibility of intermittent landing gear operation due to a faulty hydraulic power pack contactor.NTSB WPR13CA422Accident · No injuriesData collectionFinal reportBeech 35 - Undesignat · Seattle, WAThe pilot's distracted attention and failure to extend the landing gear, which resulted in a gear up landing.NTSB ERA13CA207Accident · No injuriesData collectionFinal reportCessna A185F · Palatka, FLThe pilot’s failure to retract the landing gear after takeoff from a runway, and his subsequent water landing with the wheels extended.NTSB WPR12CA415Accident · No injuriesData collectionFinal reportBeech V35B · Elko, NVThe pilot's failure to extend the landing gear during the aborted takeoff. Contributing to the accident was the pilot's failure to perform a thorough preflight inspection.NTSB CEN12CA613Accident · No injuriesData collectionFinal reportBeech A36 · Washington, MOThe pilot raised the landing gear handle instead of the flap handle during a touch-and-go landing, resulting in the collapse of the nose landing gear while accelerating to takeoff.NTSB CEN12CA436Accident · No injuriesData collectionFinal reportBeech 58 · Sugar Loaf Mountain, MIThe pilot did not complete the before-landing checklist and, subsequently, failed to extend the landing gear prior to landing. Contributing to the accident was the pilot’s distraction with his passengers’ conversation.NTSB ERA12LA450Accident · No injuriesLimited investigationFinal reportBeech A36 · Johns Island, SCThe pilot's failure to complete the manual emergency gear extension after a loss of electrical power. Contributing to the accident was the pilot's decision to delegate the landing gear extension to a non-pilot-rated passenger.NTSB ERA12CA424Accident · No injuriesData collectionFinal reportBeech 58 · Atlanta, GAThe pilot's inadvertent retraction of the landing gear during the landing.NTSB CEN12LA434Accident · No injuriesLimited investigationFinal reportBeech A36 · New Orleans, LAThe pilot's failure to lower the landing gear before touchdown.NTSB CEN12LA283Accident · No injuriesLimited investigationFinal reportBeech 58 · Sioux Falls, SDThe failure of the normal and emergency landing gear system to fully retract or extend the landing gear for reasons that could not be determined during postaccident examinations, which resulted in a partial gear-up landing.NTSB CEN12CA036Accident · No injuriesData collectionFinal reportCessna 210J · West Chicago, ILThe pilot's failure to extend the landing gear before touchdown due to his failure to use a checklist.