# NTSB investigations: Lycoming IO-320 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 WPR27LA016](https://openairdocs.org/ntsb/WPR27LA016.md): Piper PA-30 · Reno, NV · Accident · No injuries · Class 4 · Limited · Investigation open · Oct 12, 2026 · N7571Y · Substantial damage
- [NTSB CEN25LA016](https://openairdocs.org/ntsb/CEN25LA016.md): Piper PA-30 · Springfield, MO · Accident · No injuries · Class 4 · Limited · Final report · Oct 10, 2024 · N7577Y · Substantial damage
  > The flight instructor’s inability to confirm landing gear position before landing due to the sun glare which resulted in gear up landing. Contributing to the accident was an undetected tripped circuit breaker for the landing gear and the inoperative gear…
- [NTSB ERA23LA210](https://openairdocs.org/ntsb/ERA23LA210.md): Piper PA-30 · St. Augustine, FL · Accident · No injuries · Class 4 · Limited · Final report · Apr 18, 2023 · N751WW · Substantial damage
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB GAA22WA121](https://openairdocs.org/ntsb/GAA22WA121.md): Piper PA-30 · Sandown, United Kingdom · Accident · No injuries · Class 5 · Foreign · Mar 14, 2022 · N8350Y · Substantial damage
- [NTSB CEN22LA083](https://openairdocs.org/ntsb/CEN22LA083.md): Piper PA-30 · Houston, TX · Accident · No injuries · Class 4 · Limited · Final report · Dec 16, 2021 · N19VS · Substantial damage
  > The instructed pilot and the flight instructor’s failure to extend the landing gear before landing resulting in a wheels up landing.
- [NTSB CEN21LA105](https://openairdocs.org/ntsb/CEN21LA105.md): Piper PA-30 · Navasota, TX · Accident · No injuries · Class 4 · Limited · Final report · Dec 28, 2020 · N1236 · Substantial damage
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB ERA16LA092](https://openairdocs.org/ntsb/ERA16LA092.md): Piper PA 30 · Dublin, GA · Accident · No injuries · Class 3 · Limited · Final report · Jan 18, 2016 · N68X · Substantial damage
  > The pilot’s inadvertent retraction of the landing gear during the landing roll following a landing approach in gusting wind conditions.
- [NTSB CEN10CA258](https://openairdocs.org/ntsb/CEN10CA258.md): Calcote Clarence E Glasair RG · Lee's Summit, MO · Accident · No injuries · Data collection · Final report · May 18, 2010 · N236CC · Substantial damage
  > The failure of the landing gear to fully extend and lock in the down position for unknown 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" = '095'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/095/cases?engine=41509

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