# NTSB investigations: Lycoming TI0-540 series: Landing gear not configured

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB ERA26LA322](https://openairdocs.org/ntsb/ERA26LA322.md): Piper PA-32R-300 · Thomaston, GA · Accident · No injuries · Class 4 · Limited · Investigation open · Aug 21, 2026 · N2297M · Substantial damage
- [NTSB ERA26LA150](https://openairdocs.org/ntsb/ERA26LA150.md): Piper PA-24-260 · Athens, GA · Accident · No injuries · Class 4 · Limited · Final report · Mar 14, 2026 · N9024P · Substantial damage
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB ANC25LA117](https://openairdocs.org/ntsb/ANC25LA117.md): Piper PA-31 · Kotlik, AK · Accident · No injuries · Class 4 · Limited · Final report · Oct 1, 2025 · N16SC · Substantial damage
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB GAA25WA241](https://openairdocs.org/ntsb/GAA25WA241.md): Mooney M20M · Innsbruck, Austria · Accident · No injuries · Class 5 · Foreign · Aug 13, 2025 · N42FA · Substantial damage
- [NTSB CEN25LA220](https://openairdocs.org/ntsb/CEN25LA220.md): Piper PA-24-260 · Ashland, WI · Accident · No injuries · Class 4 · Limited · Final report · Jun 24, 2025 · N8817P · Substantial damage
  > The pilot’s failure to extend the landing gear before landing and his failure to conduct the before landing checklist.
- [NTSB ERA24LA034](https://openairdocs.org/ntsb/ERA24LA034.md): Piper PA32R · Florala, AL · Accident · No injuries · Class 4 · Limited · Final report · Nov 8, 2023 · N100VF · Substantial damage
  > The pilot’s failure to extend the landing gear before landing. Contributing to the accident was the flight instructor’s inadequate supervision of the flight.
- [NTSB ERA23LA301](https://openairdocs.org/ntsb/ERA23LA301.md): Piper PA-31-310 · Lumberton, NJ · Accident · No injuries · Class 4 · Limited · Final report · Jul 14, 2023 · N400S · Substantial damage
  > The pilot's failure to extend the landing gear before landing.
- [NTSB WPR21LA256](https://openairdocs.org/ntsb/WPR21LA256.md): Mooney M20 · Nampa, ID · Accident · No injuries · Class 4 · Limited · Final report · Jun 28, 2021 · N381KH · Substantial damage
  > The pilot’s failure to use the landing checklist and to extend the landing gear, which resulted in a gear-up landing.
- [NTSB CEN21LA298](https://openairdocs.org/ntsb/CEN21LA298.md): Aero Commander 500 S · Jennings, LA · Accident · No injuries · Class 4 · Limited · Final report · Jun 25, 2021 · N9038N · Substantial damage
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB ANC20CA044](https://openairdocs.org/ntsb/ANC20CA044.md): Piper PA31 · Buckland, AK · Accident · No injuries · Data collection · Final report · Apr 18, 2020 · N88TG · Substantial damage
  > The 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.
- [NTSB ERA20CA148](https://openairdocs.org/ntsb/ERA20CA148.md): Aero Commander 500 · Opalocka, FL · Accident · No injuries · Data collection · Final report · Mar 27, 2020 · N516DT · Substantial damage
  > The 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.
- [NTSB GAA18CA346](https://openairdocs.org/ntsb/GAA18CA346.md): Piper PA32R · Caddo Mills, TX · Accident · No injuries · Data collection · Final report · Jun 13, 2018 · N82303 · Substantial damage
  > The 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.
- [NTSB WPR17LA217](https://openairdocs.org/ntsb/WPR17LA217.md): Piper PA-24-260 · Los Angeles, CA · Accident · No injuries · Limited investigation · Final report · Sep 26, 2017 · N9020P · Substantial damage
  > The pilot's failure to extend the landing gear before landing.
- [NTSB GAA17CA126](https://openairdocs.org/ntsb/GAA17CA126.md): Piper PA32R · Fort Mohave, AZ · Accident · No injuries · Data collection · Final report · Jan 26, 2017 · N6885F · Substantial damage
  > The pilot's failure to extend the landing gear for landing.
- [NTSB GAA16LA087](https://openairdocs.org/ntsb/GAA16LA087.md): Piper PA 31 · Clearwater, FL · Accident · No injuries · Limited investigation · Final report · Dec 12, 2015 · N27405 · Substantial damage
  > The pilot's failure to extend the landing gear before landing.
- [NTSB ANC15CA027](https://openairdocs.org/ntsb/ANC15CA027.md): Piper PA 31-350 · Homer, AK · Accident · No injuries · Data collection · Final report · May 17, 2015 · N4079H · Substantial damage
  > The 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.
- [NTSB ERA15CA169](https://openairdocs.org/ntsb/ERA15CA169.md): Bellanca 17 31A · Siler City, NC · Accident · No injuries · Data collection · Final report · Mar 24, 2015 · N93715 · Destroyed
  > The pilot's failure to ensure that the airplane's landing gear was down and locked prior to touchdown.
- [NTSB ERA15LA161](https://openairdocs.org/ntsb/ERA15LA161.md): Lanshe Aerospace Lake 250 · Fernandina Beach, FL · Accident · Serious injuries · Limited investigation · Final report · Mar 18, 2015 · N99HB · Substantial damage
  > The pilot's failure to extend the landing gear during the approach, which resulted in a gear-up landing.
- [NTSB CEN13FA351](https://openairdocs.org/ntsb/CEN13FA351.md): Piper PA-24-260 · La Pointe, WI · Accident · 2 fatal · Field investigation · Final report · Jun 15, 2013 · N8815P · Destroyed
  > The pilot’s failure to maintain airplane control after deciding to go around after a gear-up landing, resulting in an aerodynamic stall.
- [NTSB CEN11CA277](https://openairdocs.org/ntsb/CEN11CA277.md): Piper PA-24-260 · Kansas City, MO · Accident · No injuries · Data collection · Final report · Mar 29, 2011 · N8546P · Substantial damage
  > The pilot's failure to extend the landing gear for a landing.
- [NTSB CEN10LA524](https://openairdocs.org/ntsb/CEN10LA524.md): Piper PA-46-350P · Greeley, CO · Accident · No injuries · Limited investigation · Final report · Aug 24, 2010 · N4167A · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB CEN10CA228](https://openairdocs.org/ntsb/CEN10CA228.md): Piper PA-32R-300 · Jamestown, ND · Accident · No injuries · Data collection · Final report · Apr 26, 2010 · N5868V · Substantial damage
  > The pilot's failure to lower the landing gear, resulting in a gear-up landing.
- [NTSB WPR09CA120](https://openairdocs.org/ntsb/WPR09CA120.md): Piper PA-24-260 · Lincoln, CA · Accident · No injuries · Data collection · Final report · Feb 20, 2009 · N8816P · Substantial damage
  > The 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.
- [NTSB CEN09CA156](https://openairdocs.org/ntsb/CEN09CA156.md): Rockwell International 500-S · Grand Forks, ND · Accident · No injuries · Data collection · Final report · Dec 5, 2008 · N51RF · Substantial damage
  > The pilot's failure to extend the landing gear prior to touchdown.
- [NTSB LAX08LA080](https://openairdocs.org/ntsb/LAX08LA080.md): Piper PA-31-350 · Portland, OR · Accident · No injuries · Limited investigation · Final report · Mar 20, 2008 · N4098A · Substantial damage
  > The 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.
- [NTSB MIA08CA077](https://openairdocs.org/ntsb/MIA08CA077.md): Piper PA24-260 · West Palm Beach, FL · Accident · No injuries · Data collection · Final report · Mar 5, 2008 · N9126P · Substantial damage
  > The pilot's failure to follow the checklist resulting in a gear up landing.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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
```

This list as a web page: https://openairdocs.org/ntsb-events/095/cases?engine=41533

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.