# NTSB investigations: Lycoming IO-320 series: Landing gear collapse

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 WPR26LA107](https://openairdocs.org/ntsb/WPR26LA107.md): Piper PA-30 · Big Bear, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Feb 24, 2026 · N811LE · Substantial damage
  > On February 23, 2026, at 1800 Pacific standard time, a Piper PA-30, N811LE, was substantially damaged when it was involved in an accident near Big Bear, California. The pilot and passenger were not injured. The airplane was operated as a 14 Code of Federal…
- [NTSB CEN25LA015](https://openairdocs.org/ntsb/CEN25LA015.md): Piper PA-30 · New Orleans, LA · Accident · No injuries · Class 4 · Limited · Final report · Oct 16, 2024 · N7967Y · Substantial damage
  > The failure of a landing gear torque arm which resulted in a landing gear collapse and runway excursion.
- [NTSB WPR20LA252](https://openairdocs.org/ntsb/WPR20LA252.md): Piper PA 30 · Salem, OR · Accident · No injuries · Class 3 · Limited · Final report · Jun 5, 2020 · N8244Y · Substantial damage
  > A fatigue failure of the right main landing gear trunnion.
- [NTSB ERA18LA171](https://openairdocs.org/ntsb/ERA18LA171.md): Piper PA 30 · Vero Beach, FL · Accident · No injuries · Limited investigation · Final report · Jun 17, 2018 · N8674Y · Substantial damage
  > The collapse of all three landing gear for reasons that could not be determined because postaccident examination of the landing gear system revealed no evidence of any mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN12LA204](https://openairdocs.org/ntsb/CEN12LA204.md): Piper PA-30 · Roanoke, TX · Accident · No injuries · Limited investigation · Final report · Mar 2, 2012 · N373JT · Substantial damage
  > The pilot’s failure to follow the published emergency procedures to lower the landing gear following a loss of electrical power.
- [NTSB WPR11LA063](https://openairdocs.org/ntsb/WPR11LA063.md): Champion 7KCAB · Rialto, CA · Accident · No injuries · Limited investigation · Final report · Nov 27, 2010 · N5101X · Substantial damage
  > Fatigue cracking of the left main landing gear leg, which resulted in a gear collapse during landing.
- [NTSB ERA10CA183](https://openairdocs.org/ntsb/ERA10CA183.md): Piper PA-30 · Baltimore, MD · Accident · No injuries · Data collection · Final report · Mar 17, 2010 · N7925Y · Substantial damage
  > The pilot's inadvertent retraction of the landing gear during a touch-and-go landing. Contributing to the accident was the pilot's lack of recent experience in the make and model airplane.
- [NTSB WPR09LA372](https://openairdocs.org/ntsb/WPR09LA372.md): Piper PA-30 · Walla Walla, WA · Accident · No injuries · Limited investigation · Final report · Jul 22, 2009 · N7504Y · Substantial damage
  > A tripped landing gear motor circuit breaker, which prevented the gear from fully locking in the down position, and subsequent collapse during landing. Contributing to the accident was the disabled landing gear warning horn.
- [NTSB NYC08CA315](https://openairdocs.org/ntsb/NYC08CA315.md): Piper PA-30 · Jefferson, GA · Accident · No injuries · Data collection · Final report · Sep 18, 2008 · N7195Y · Substantial damage
  > The pilot's failure to follow the airplane manufacturer's landing gear failure and emergency extension procedures. Contributing to the accident was a malfunction of the landing gear system for undetermined reasons.

## 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 ('41509')
    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" = '094'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/094/cases?engine=41509

---
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.