NTSB investigations: Continental I0-470 series

24 cases on aircraft whose registry engine model is Continental I0-470 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 I0-470 series per year, 2008–2026: 24 cases
20082
20091
20103
20121
20131
20141
20193
20202
20213
20221
20232
20252
20262

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 ('17027')
      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 CEN26LA261Accident · No injuriesClass 4 · LimitedInvestigation openBeech 35-B33 · Alton, ILJul 18, 2026 · N1470G · Substantial damageNTSB ANC26LA060Accident · No injuriesClass 4 · LimitedInvestigation openBeech E33 · Steamboat Springs, COJun 13, 2026 · N8475N · Substantial damageNTSB ERA25LA343Accident · No injuriesClass 4 · LimitedFinal reportBeech 95-B55 (T42A) · St. Petersburg, FLThe pilot’s failure to extend the landing gear prior to landing. Contributing to the accident was a malfunction of the landing gear’s electrical retraction/extension system, which tripped the circuit breaker.Aug 20, 2025 · N8313N · Substantial damageNTSB ERA25LA205Accident · No injuriesClass 4 · LimitedFinal reportBeech P35 · Houserville, PAThe pilot’s failure to extend the landing gear before landing.May 13, 2025 · N2840R · Substantial damageNTSB ERA24LA037Accident · No injuriesClass 4 · LimitedFinal reportCessna 210 · Frederick, MDA failure of a hydraulic filter, which preluded normal extension of the landing gear. Also causal was the pilot’s failure to confirm that he landing gear was extended before landing, which resulted in a gear up landing.Nov 13, 2023 · N9515X · Substantial damageNTSB CEN23LA407Accident · No injuriesClass 3 · LimitedFinal reportBeech 95-B55 (T42A) · Greeley, COThe pilot’s failure to extend the landing gear. Contributing to the accident was a malfunction of the landing gear warning horn for undetermined reasons.Aug 30, 2023 · N2KM · Substantial damageNTSB CEN22LA183Accident · No injuriesClass 4 · LimitedFinal reportBeech 95-B55 (T42A) · Wharton, TXThe pilot’s failure to extend the landing gear.Apr 21, 2022 · N66NP · Substantial damageNTSB WPR22LA086Accident · No injuriesClass 4 · LimitedFinal reportCessna 310Q · Corona, CAThe pilot receiving instruction failure to extend the landing gear before landing due to distraction and the flight instructor’s inadequate supervision.Dec 7, 2021 · N310CC · Substantial damageNTSB CEN21LA453Accident · No injuriesClass 4 · LimitedFinal reportBeech M35 · Osage Beach, MOThe pilot and flight instructor’s failure to ensure that the landing gear were extended prior to landing.Sep 17, 2021 · N9835R · Substantial damageNTSB CEN21LA205Accident · No injuriesClass 4 · LimitedFinal reportCessna 310N · Carrollton, OHThe pilot’s failure to confirm the landing gear was down before landing due to distraction during the Before Landing checks, which resulted in a gear-up landing.Apr 24, 2021 · N310VD · Substantial damageNTSB CEN20CA363Accident · No injuriesClass 4 · Data collectionFinal reportBeech 55 · Athens, TXThe pilot’s failure to extend the landing gear during the approach and landing.Aug 22, 2020 · N1621W · Substantial damageNTSB ANC20CA045Accident · No injuriesClass 4 · Data collectionFinal reportGrumman G44 · Anchorage, AKThe pilot's failure to extend the landing gear for a runway landing, which resulted in a gear-up landing.May 1, 2020 · N91040 · Substantial damageNTSB ERA20LA035Accident · No injuriesClass 3 · LimitedFinal reportBeech 55 · Griffin, GAThe pilot’s failure to ensure that the airplane was properly configured for takeoff, which resulted in the inadvertent retraction of the landing gear during the takeoff roll and the airplane’s subsequent runway excursion.Nov 9, 2019 · N686DR · Substantial damageNTSB ERA19TA233Accident · No injuriesClass 3Final reportBeech 95B55 · Sanford, FLThe pilot's failure to extend the landing gear during landing.Jul 19, 2019 · N386Q · Substantial damageNTSB WPR19LA139Accident · No injuriesClass 3 · LimitedFinal reportBeech 35 · Minden, NVA partial extension of the landing gear due to the poor condition of the electric landing gear motor, which resulted in a gear collapse upon landing.May 5, 2019 · N1510S · Substantial damageNTSB CEN15CA011Accident · No injuriesData collectionFinal reportBeech 35-B33 · Effingham, ILThe pilot's failure to lower the landing gear.Oct 11, 2014 · N718CD · Substantial damageNTSB WPR13CA193Accident · No injuriesData collectionFinal reportCessna 210B · Caldwell, IDThe pilot’s failure to lower the landing gear, which resulted in a gear-up hard landing.Apr 15, 2013 · N9685X · Substantial damageNTSB WPR12CA393Accident · No injuriesData collectionFinal reportBeech 95-55 · Spanoway, WAThe pilot’s failure to lower the landing gear prior to landing.Sep 4, 2012 · N4QC · Substantial damageNTSB CEN10LA564Accident · No injuriesLimited investigationFinal reportCessna 310K · Boerne Stage, TXThe pilot’s failure to ensure that the landing gear was extended prior to landing, resulting in a landing on the partially extended landing gear.Sep 26, 2010 · N550JW · Substantial damageNTSB WPR10LA216Accident · No injuriesLimited investigationFinal reportCessna 210 · Show Low, AZInadequate clearance between a landing gear brake system line and airframe components, which precluded gear extension and resulted in an intentional gear-up landing.Apr 11, 2010 · N9527T · Substantial damageNTSB ERA10CA201Accident · No injuriesData collectionFinal reportBeech 95-B55 (T42A) · Sevierville, TNThe pilot's inadvertent retraction of the landing gear on the ground during a touch-and-go landing.Mar 31, 2010 · N43BS · Substantial damageNTSB CEN09CA260Accident · No injuriesData collectionFinal reportCessna 210 · Richmond, INThe pilot under instruction's failure to lower the landing gear and the instructor pilot's inadequate supervision.Apr 22, 2009 · N7409E · Substantial damageNTSB WPR09CA101Accident · No injuriesData collectionFinal reportBeech K35 · Port Townsend, WAThe pilot's failure to lower the landing gear prior to landing. Contributing to the accident was the pilot's failure to use a checklist and the distraction caused by the discussion with the passenger.Nov 14, 2008 · N411B · Substantial damageNTSB CHI08CA110Accident · No injuriesData collectionFinal reportBeech 95-B55 · Lansing, MIThe pilot's inadvertent raising of the landing gear during rollout.Apr 18, 2008 · N8991M · Substantial damage