NTSB investigations: Continental TSIO-520 series

25 cases on aircraft whose registry engine model is Continental TSIO-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

20082026
NTSB investigations: Continental TSIO-520 series per year, 2008–2026: 25 cases
20082
20092
20101
20122
20133
20152
20174
20182
20191
20201
20221
20231
20263

Latest 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\" = '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.

NTSB WPR26LA311Accident · No injuriesClass 4 · LimitedFinal reportCessna T210M · Logan, UTThe pilot’s failure to extend the airplane’s landing gear before landing.Aug 21, 2026 · N761WT · Substantial damageNTSB CEN26LA226Accident · No injuriesClass 4 · LimitedFinal reportBeech A36TC · Kingsford, MIThe pin on the nose gear brace assembly that engages with the cam on the nose landing gear door actuator shaft was not seated inside the cam, which rendered the nose landing gear inoperative.Jun 14, 2026 · N3701N · Substantial damageNTSB WPR26LA210Accident · No injuriesClass 4 · LimitedFinal reportCessna P210 · Salem, ORThe pilot’s failure to extend the landing gear prior to landing.Jun 3, 2026 · N4875K · Substantial damageNTSB WPR23LA234Accident · No injuriesClass 4 · LimitedFinal reportCessna P210N · Olivehurst, CAThe pilot’s failure to extend the landing gear before landing.Jun 10, 2023 · N4761A · Substantial damageNTSB ERA22LA415Accident · No injuriesClass 4 · LimitedFinal reportCessna T210N · Georgetown, DEThe pilot's failure to extend the landing gear before landing. Contributing to the accident was an inoperative landing gear warning horn.Aug 25, 2022 · N5132C · Substantial damageNTSB WPR20CA184Accident · No injuriesClass 4 · Data collectionFinal reportCessna P210 · Maricopa, AZThe pilot's failure to extend the airplane’s retractable landing gear before landing.Jun 16, 2020 · N117KP · Substantial damageNTSB GAA19CA171Accident · No injuriesData collectionFinal reportCessna T210 · Chandler, AZThe pilot's distraction while looking for other aircraft in the traffic pattern, which resulted in his failure to follow a prelanding checklist and to extend the landing gear before landing. Contributing to the accident was the improperly rigged landing gear…Mar 9, 2019 · N732SJ · Substantial damageNTSB 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…Sep 15, 2018 · N5340Y · Substantial damageNTSB GAA18CA174Accident · No injuriesData collectionFinal reportCessna P210 · Jacksonville, FLThe pilot’s failure to extend the landing gear before landing. Contributing to the accident were pilot fatigue and his failure to use the before landing checklist.Feb 20, 2018 · N81MT · Substantial damageNTSB GAA17CA543Accident · No injuriesData collectionFinal reportCessna T210 · St George, UTThe pilot’s failure to extend the landing gear before landing.Sep 20, 2017 · N22650 · Substantial damageNTSB GAA17CA423Accident · No injuriesData collectionFinal reportCessna T210L · Yuba City, CAThe pilot’s failure to extend the landing gear before landing.Jul 7, 2017 · N333GK · Substantial damageNTSB ERA17LA151Accident · No injuriesClass 3 · LimitedFinal reportCessna 414 · Atlanta, GAThe pilot's diverted attention during the landing approach, which resulted in his failure to configure the landing gear and a subsequent a gear-up landing.Apr 7, 2017 · N56H · Substantial damageNTSB GAA17CA221Accident · No injuriesData collectionFinal reportCessna P210 · Granby, COThe pilot's failure to extend the landing gear before landing.Apr 6, 2017 · N829BA · Substantial damageNTSB GAA15CA206Accident · No injuriesData collectionFinal reportCessna T210L · Duluth, MNThe pilot's failure to extend the landing gear prior to landing, which resulted in substantial damage to the fuselage during landing. Contributing to the accident was the pilot's diverted attention to another airplane in the vicinity and that he inaccurately…Jul 25, 2015 · N1650X · Substantial damageNTSB WPR15CA112Accident · No injuriesData collectionFinal reportCessna T210 - L · The Dalles, ORThe pilot's failure to extend the landing gear prior to touch down. Contributing to the accident was the pilot's failure to utilize the pre-landing checklist.Feb 16, 2015 · N93810 · Substantial damageNTSB CEN13LA252Accident · No injuriesLimited investigationFinal reportCessna P210N · Saint Louis, MOThe pilot's failure to extend the landing gear or check that it was in the down position before landing.May 1, 2013 · N731NR · Substantial damageNTSB WPR13CA258Accident · No injuriesData collectionFinal reportCessna P210N · Corvallis, ORThe pilot's inadvertent selection and activation of the landing gear handle rather than the flap handle during the landing roll. Contributing to the accident was the pilot's decision to alter the configuration of the airplane before exiting the runway.Apr 18, 2013 · N711BG · Substantial damageNTSB WPR13LA132Accident · No injuriesLimited investigationFinal reportCessna T310R · Casper, WYThe separation of the right main gear bracket assembly from its wing attachment fitting due to lack of lubrication of the torque tube bearing.Feb 17, 2013 · N4941J · Substantial damageNTSB WPR12CA311Accident · No injuriesData collectionFinal reportCessna T210L · Idaho Falls, IDThe pilot’s failure to extend the landing gear before landing. Contributing to the accident was an uncorrected malfunction of the landing gear warning horn system.Jul 12, 2012 · N787AE · Substantial damageNTSB WPR12LA097Accident · No injuriesLimited investigationFinal reportBeech 58P · Santa Ana, CAThe pilot’s failure to review or execute any applicable checklist procedures or troubleshoot or take corrective action before landing despite indications that the landing gear was not extended. Contributing to the accident were the pilot’s misunderstanding of…Jan 8, 2012 · N580TC · Substantial damageNTSB CEN10CA533Accident · No injuriesData collectionFinal reportPiper PA46-310P · Farmington, NMThe pilot’s premature retraction of the landing gear and the flaps during landing. Contributing to the accident was the inadvertent dimming of the cockpit lighting, resulting in a perceived unsafe gear configuration.Sep 12, 2010 · N24WW · Substantial damageNTSB WPR09FA212Accident · No injuriesField investigationFinal reportCessna T210L · Moab, UTThe pilot's failure to lower the landing gear prior to landing. Contributing to the accident was the pilot's self-induced distraction by maneuvering on final to show a point of interest to passengers.Apr 20, 2009 · N367N · Substantial damageNTSB CEN09CA125Accident · No injuriesData collectionFinal reportCessna T210L · Albuquerque, NMThe pilot's failure to remove the airplane's tow bar before takeoff.Jan 10, 2009 · N211LC · Substantial damageNTSB WPR09CA044Accident · No injuriesData collectionFinal reportCessna T210M · Hanford, CAThe failure of the pilot to use the before-landing checklist and extend the landing gear prior to landing.Nov 22, 2008 · N732XS · Substantial damageNTSB LAX08LA281Accident · Minor injuriesLimited investigationFinal reportCessna TU206G · Groveland, CAThe pilot's failure to ensure that the landing gear was retracted prior to the water landing.Aug 20, 2008 · N818CT · Substantial damage