# NTSB investigations: Lycoming IO-540 series, AR

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 CEN16FA215](https://openairdocs.org/ntsb/CEN16FA215.md): Robinson Helicopter R44 II · Jonesboro, AR · Accident · 1 fatal · Field investigation · Final report · Jun 12, 2016 · N789MR · Destroyed
  > The pilot's failure to maintain helicopter control during takeoff. Contributing to the accident was the pilot's impairment due to his combined use of alcohol and diphenhydramine, which led to his improper decision to fly after drinking alcohol and degraded…
- [NTSB CEN14FA014](https://openairdocs.org/ntsb/CEN14FA014.md): Piper PA 32R-301 · Huntsville, AR · Accident · 2 fatal · Field investigation · Final report · Oct 21, 2013 · N888TP · Destroyed
  > The noninstrument-rated pilot’s continued flight into an area of known rain with reduced visibility and his failure to maintain airplane control while maneuvering the airplane after entering these conditions.
- [NTSB FTW03FA016](https://openairdocs.org/ntsb/FTW03FA016.md): Piper PA-32-301 · Paron, AR · Accident · 6 fatal · Field investigation · Final report · Oct 20, 2002 · N4353Y · Destroyed
  > The pilot's failure to maintain altitude/clearance from terrain. Contributing factors were the low ceiling, the pilot's decision to fly in known adverse weather conditions, and his lack of an instrument rating.
- [NTSB FTW03FA003](https://openairdocs.org/ntsb/FTW03FA003.md): Socata TB-20 · Texarkana, AR · Accident · 1 fatal · Field investigation · Final report · Oct 3, 2002 · N575RM · Destroyed
  > The inadvertamt stall by the student pilot, and the inadequate supervision by the flight instructor.
- [NTSB FTW99FA104](https://openairdocs.org/ntsb/FTW99FA104.md): Piper PA-46-350P · Waldron, AR · Accident · 1 fatal · Field investigation · Final report · Apr 4, 1999 · N497CA · Destroyed
  > The pilot's encounter with adverse weather and loss of aircraft control, which resulted in exceeding the aircraft's design stress limits. Factors were the pilot's lack of total experience in the make and model of airplane, and the icing and thunderstorm…
- [NTSB FTW97LA284](https://openairdocs.org/ntsb/FTW97LA284.md): Piper PA-32-300 · Pine Bluff, AR · Accident · Minor injuries · Limited investigation · Final report · Jul 26, 1997 · N38800 · Substantial damage
  > loss of engine power for undetermined reason(s). The lack of suitable terrain for a forced landing was a related factor.
- [NTSB FTW95LA355](https://openairdocs.org/ntsb/FTW95LA355.md): Piper PA-32R-300 · Fayetteville, AR · Accident · No injuries · Limited investigation · Final report · Aug 19, 1995 · N47423 · Substantial damage
  > The pilot's inability to extend the landing gear due to the failure of an emergency gear extension valve.
- [NTSB MKC90LA112](https://openairdocs.org/ntsb/MKC90LA112.md): Piper PA-32-300 · Little Rock, AR · Accident · No injuries · Limited investigation · Final report · May 23, 1990 · N301KK · Substantial damage
  > The failure of the powerplant due to a sheared timing gear. Contributing factors were unsuitable terrain and restricted vision due to fog.
- [NTSB MKC86LA120](https://openairdocs.org/ntsb/MKC86LA120.md): Eagle DW-1 · Corning, AR · Accident · No injuries · Limited investigation · Final report · May 29, 1986 · N8814M · Substantial damage
  > The plt was making his second flt in this acft when the accident occurred. He failed to lock the cockpit canopy before start of takeoff roll. During the takeoff roll the canopy opened and separated from the acft. The plt diverted his attention from flying the…

## 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."eventStateOrRegion" = 'AR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41530&state=AR

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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.