# Final NTSB investigations: Lycoming IO-520 series

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 WPR23LA165](https://openairdocs.org/ntsb/WPR23LA165.md): Oneal J R/Oneal R C EDI Express · Tracy, CA · Accident · No injuries · Class 4 · Limited · Final report · Apr 24, 2023 · N92734 · Substantial damage
  > The pilot’s failure to maintain directional control during the takeoff roll.
- [NTSB ERA23FA113](https://openairdocs.org/ntsb/ERA23FA113.md): Beech A36 · North Castle, NY · Accident · 2 fatal · Class 3 · Field · Final report · Jan 19, 2023 · N19MT · Substantial damage
  > The pre-ignition/detonation damage to the No. 4 piston for reasons that could not be determined, which allowed the crankcase to become pressurized and resulted in oil exhaustion and subsequent catastrophic internal engine failure.
- [NTSB GAA16CA423](https://openairdocs.org/ntsb/GAA16CA423.md): Beech F33 · Bivalve, MD · Accident · No injuries · Data collection · Final report · Aug 4, 2016 · N90HF · Substantial damage
  > The pilot's excessive airspeed during landing, which resulted in a runway overrun, and impact with a ditch.
- [NTSB WPR12LA023](https://openairdocs.org/ntsb/WPR12LA023.md): Cessna 185 · Prineville, OR · Accident · No injuries · Limited investigation · Final report · Oct 28, 2011 · N520YH · Substantial damage
  > A total loss of engine power due to fuel starvation, which resulted from the pilot inadvertently leaving the fuel selector set to the left tank. Contributing to the accident was the pilot’s deviation from his normal habit pattern and his failure to refer to…
- [NTSB LAX08FA092](https://openairdocs.org/ntsb/LAX08FA092.md): Beech 95-B55 · Benson, AZ · Accident · 2 fatal · Field investigation · Final report · Apr 3, 2008 · N20480 · Substantial damage
  > The pilot's misjudged speed and altitude during approach that led to a long landing and his subsequent failure to maintain control during an attempted go-around. Contributing to the accident were the dark night, the pilot's low total night flight experience,…
- [NTSB DFW05CA247](https://openairdocs.org/ntsb/DFW05CA247.md): Smith, Ted Aerostar 601P · Mexia, TX · Accident · Minor injuries · Data collection · Final report · Sep 22, 2005 · N909KF · Destroyed
  > The pilot's failure to maintain clearance from the barn. Contributing factors were the pilot's inadequate preflight planning/preparation and the high-density altitude.
- [NTSB LAX04LA074](https://openairdocs.org/ntsb/LAX04LA074.md): Beech B55 · Angwin, CA · Accident · No injuries · Limited investigation · Final report · Dec 20, 2003 · N20480 · Substantial damage
  > The pilot's continued VFR flight into adverse weather conditions during cruise flight, which resulted in a low fuel state and a precautionary landing in rough terrain.
- [NTSB MIA95LA184](https://openairdocs.org/ntsb/MIA95LA184.md): Cessna T188C · Ruleville, MS · Accident · Minor injuries · Limited investigation · Final report · Jul 13, 1995 · N2119J · Substantial damage
  > The pilot-in-command's failure to abort the takeoff when the aircraft accelerated slowly. Contributing to the accident was the over loading of the aircraft by ground personnel and the failure of the pilot-in-command to verify the loading of the aircraft.
- [NTSB ANC92T#A10](https://openairdocs.org/ntsb/ANC92T%23A10.md): Cessna 206 · Shishmaref, AK · Accident · No injuries · Class 3 · Final report · Aug 16, 1992 · N9798Z · 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 ('41584'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41584&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.