# Final NTSB investigations: Lycoming IO-540-V4A5D

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 ERA26LA184](https://openairdocs.org/ntsb/ERA26LA184.md): Maule M-7-260C · Tampa, FL · Accident · Minor injuries · Class 4 · Limited · Final report · Apr 23, 2026 · N41S · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during the aborted landing, which resulted in a runway excursion, collision with a runway sign, and nose over.
- [NTSB ERA26LA002](https://openairdocs.org/ntsb/ERA26LA002.md): Maule M-7-260 · Parkland, FL · Accident · No injuries · Class 4 · Limited · Final report · Oct 4, 2025 · N368FS · Substantial damage
  > The pilot’s failure to retract the amphibious airplane’s landing gear before conducting a forced landing on the water, which resulted in a nose over.
- [NTSB WPR20CA198](https://openairdocs.org/ntsb/WPR20CA198.md): Maule M7 · Yellow Pine, ID · Accident · No injuries · Class 4 · Data collection · Final report · Jun 24, 2020 · N288BC · Substantial damage
  > The pilot's improper approach airspeed and landing flare, which resulted in a bounced landing, and subsequent nose over.
- [NTSB GAA18CA569](https://openairdocs.org/ntsb/GAA18CA569.md): Maule M7 · Grass Valley, OR · Accident · No injuries · Data collection · Final report · Sep 16, 2018 · N760AC · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll.
- [NTSB GAA16CA015](https://openairdocs.org/ntsb/GAA16CA015.md): Maule M 7-260C · Grace, ID · Accident · No injuries · Data collection · Final report · Oct 15, 2015 · N288BC · Substantial damage
  > The pilot's selection of unsuitable terrain for landing, which resulted in a nose over.
- [NTSB CEN14CA503](https://openairdocs.org/ntsb/CEN14CA503.md): Maule MT 7-260 · Largo Vista, TX · Accident · No injuries · Data collection · Final report · Sep 12, 2014 · N719WM · Substantial damage
  > The pilot's inadequate compensation for gusting wind conditions during takeoff, which resulted in the nose landing gear impacting the runway and the subsequent collapse of the nose landing gear.
- [NTSB ERA10CA393](https://openairdocs.org/ntsb/ERA10CA393.md): Maule M-7-260 · Onset, MA · Accident · No injuries · Data collection · Final report · Aug 2, 2010 · N3188L · Substantial damage
  > The pilot's loss of airplane control during the initial climb.
- [NTSB ANC84FA080](https://openairdocs.org/ntsb/ANC84FA080.md): Cessna 180G · Tyonek, AK · Accident · 2 fatal · Field investigation · Final report · Jun 2, 1984 · N4708U · 2 aircraft · Destroyed
  > Taking off from an abandoned road near a fishing camp, the Cessna turned back and descended with power on over his departure point, heading into the sun which was low on the horizon. It collided left wing to left wing with the Maule which had climbed out at a…
- [NTSB ANC80DAG51](https://openairdocs.org/ntsb/ANC80DAG51.md): Maule M-5 · Polly Creek, AK · Accident · No injuries · Closed · May 11, 1980 · N9297E · Substantial damage

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41807'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41807&status=final

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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.