NTSB investigations: Lycoming TI0-540 series

26 cases on aircraft whose registry engine model is Lycoming TI0-540 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: Lycoming TI0-540 series per year, 2008–2026: 26 cases
20083
20091
20102
20111
20131
20154
20172
20181
20202
20212
20232
20253
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 ('41533')
      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 ERA26LA322Accident · No injuriesClass 4 · LimitedInvestigation openPiper PA-32R-300 · Thomaston, GAAug 21, 2026 · N2297M · Substantial damageNTSB ERA26LA150Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-260 · Athens, GAThe pilot’s failure to extend the landing gear before landing.Mar 14, 2026 · N9024P · Substantial damageNTSB ANC25LA117Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31 · Kotlik, AKThe pilot’s failure to extend the landing gear before landing.Oct 1, 2025 · N16SC · Substantial damageNTSB GAA25WA241Accident · No injuriesClass 5 · ForeignMooney M20M · Innsbruck, AustriaAug 13, 2025 · N42FA · Substantial damageNTSB CEN25LA220Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-260 · Ashland, WIThe pilot’s failure to extend the landing gear before landing and his failure to conduct the before landing checklist.Jun 24, 2025 · N8817P · Substantial damageNTSB ERA24LA034Accident · No injuriesClass 4 · LimitedFinal reportPiper PA32R · Florala, ALThe pilot’s failure to extend the landing gear before landing. Contributing to the accident was the flight instructor’s inadequate supervision of the flight.Nov 8, 2023 · N100VF · Substantial damageNTSB ERA23LA301Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31-310 · Lumberton, NJThe pilot's failure to extend the landing gear before landing.Jul 14, 2023 · N400S · Substantial damageNTSB WPR21LA256Accident · No injuriesClass 4 · LimitedFinal reportMooney M20 · Nampa, IDThe pilot’s failure to use the landing checklist and to extend the landing gear, which resulted in a gear-up landing.Jun 28, 2021 · N381KH · Substantial damageNTSB CEN21LA298Accident · No injuriesClass 4 · LimitedFinal reportAero Commander 500 S · Jennings, LAThe pilot’s failure to extend the landing gear before landing.Jun 25, 2021 · N9038N · Substantial damageNTSB ANC20CA044Accident · No injuriesData collectionFinal reportPiper PA31 · Buckland, AKThe pilot's failure to extend the landing gear before landing due to distraction by the condition of the runway and his failure to use the Before Landing checklist.Apr 18, 2020 · N88TG · Substantial damageNTSB ERA20CA148Accident · No injuriesData collectionFinal reportAero Commander 500 · Opalocka, FLThe pilot's failure to extend the landing gear due to distraction and his delayed go-around, which allowed the airplane to get too low and contact the runway with the landing gear retracted.Mar 27, 2020 · N516DT · Substantial damageNTSB GAA18CA346Accident · No injuriesData collectionFinal reportPiper PA32R · Caddo Mills, TXThe student pilot’s failure to extend the landing gear before landing and to follow the Before Landing checklist, which resulted in an attempted go-around and subsequent hard landing.Jun 13, 2018 · N82303 · Substantial damageNTSB WPR17LA217Accident · No injuriesLimited investigationFinal reportPiper PA-24-260 · Los Angeles, CAThe pilot's failure to extend the landing gear before landing.Sep 26, 2017 · N9020P · Substantial damageNTSB GAA17CA126Accident · No injuriesData collectionFinal reportPiper PA32R · Fort Mohave, AZThe pilot's failure to extend the landing gear for landing.Jan 26, 2017 · N6885F · Substantial damageNTSB GAA16LA087Accident · No injuriesLimited investigationFinal reportPiper PA 31 · Clearwater, FLThe pilot's failure to extend the landing gear before landing.Dec 12, 2015 · N27405 · Substantial damageNTSB ANC15CA027Accident · No injuriesData collectionFinal reportPiper PA 31-350 · Homer, AKThe pilot's failure to extend the landing gear before landing. Contributing to the accident was the pilot's decision to continue the approach to landing while distracted and his failure to complete the landing checklist.May 17, 2015 · N4079H · Substantial damageNTSB ERA15CA169Accident · No injuriesData collectionFinal reportBellanca 17 31A · Siler City, NCThe pilot's failure to ensure that the airplane's landing gear was down and locked prior to touchdown.Mar 24, 2015 · N93715 · DestroyedNTSB ERA15LA161Accident · Serious injuriesLimited investigationFinal reportLanshe Aerospace Lake 250 · Fernandina Beach, FLThe pilot's failure to extend the landing gear during the approach, which resulted in a gear-up landing.Mar 18, 2015 · N99HB · Substantial damageNTSB CEN13FA351Accident · 2 fatalField investigationFinal reportPiper PA-24-260 · La Pointe, WIThe pilot’s failure to maintain airplane control after deciding to go around after a gear-up landing, resulting in an aerodynamic stall.Jun 15, 2013 · N8815P · DestroyedNTSB CEN11CA277Accident · No injuriesData collectionFinal reportPiper PA-24-260 · Kansas City, MOThe pilot's failure to extend the landing gear for a landing.Mar 29, 2011 · N8546P · Substantial damageNTSB CEN10LA524Accident · No injuriesLimited investigationFinal reportPiper PA-46-350P · Greeley, COA loss of engine power for undetermined reasons.Aug 24, 2010 · N4167A · Substantial damageNTSB CEN10CA228Accident · No injuriesData collectionFinal reportPiper PA-32R-300 · Jamestown, NDThe pilot's failure to lower the landing gear, resulting in a gear-up landing.Apr 26, 2010 · N5868V · Substantial damageNTSB WPR09CA120Accident · No injuriesData collectionFinal reportPiper PA-24-260 · Lincoln, CAThe pilot's failure to extend the landing gear for landing. Contributing to the accident was the pilot's diverted attention due to an open door and the airport's pilot activated runway lights turning off.Feb 20, 2009 · N8816P · Substantial damageNTSB CEN09CA156Accident · No injuriesData collectionFinal reportRockwell International 500-S · Grand Forks, NDThe pilot's failure to extend the landing gear prior to touchdown.Dec 5, 2008 · N51RF · Substantial damageNTSB LAX08LA080Accident · No injuriesLimited investigationFinal reportPiper PA-31-350 · Portland, ORThe failure of company maintenance personnel to install the upper pivot bolt through the pivot hole in the upper end of the landing gear actuating rod, and the company maintenance inspector's inadequate inspection of the work performed.Mar 20, 2008 · N4098A · Substantial damageNTSB MIA08CA077Accident · No injuriesData collectionFinal reportPiper PA24-260 · West Palm Beach, FLThe pilot's failure to follow the checklist resulting in a gear up landing.Mar 5, 2008 · N9126P · Substantial damage