# Fatal NTSB investigations: Lycoming IO-540-AB1A5

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 ANC26FA039](https://openairdocs.org/ntsb/ANC26FA039.md): Cessna 182T · Armistead, CA · Accident · 2 fatal · Class 3 · Field · Preliminary report · May 7, 2026 · N227TF · Substantial damage
  > On May 7, 2026, about 1055 pacific daylight time (PDT), a Cessna 182T airplane, N227TF, was destroyed when it was involved in an accident near Armistead, California. The flight instructor and the pilot receiving instruction were fatally injured. The airplane…
- [NTSB GAA26WA014](https://openairdocs.org/ntsb/GAA26WA014.md): Textron 182T · Nuuk, Greenland · Accident · 1 fatal · Class 5 · Foreign · Oct 25, 2025 · N9009F · Destroyed
- [NTSB CEN25FA047](https://openairdocs.org/ntsb/CEN25FA047.md): Cessna 182T · Drake, CO · Accident · 2 fatal · Class 3 · Field · Final report · Nov 23, 2024 · N434CP · Destroyed
  > The pilot’s failure to maintain airplane control while maneuvering in mountainous terrain. Contributing was mountain wave turbulence in the area.
- [NTSB WPR21FA048](https://openairdocs.org/ntsb/WPR21FA048.md): Cessna 182 · Los Angeles, CA · Accident · 1 fatal · Class 3 · Field · Final report · Nov 12, 2020 · N939CP · Destroyed
  > Maintenance personnel’s failure to properly secure the throttle control hardware during recent maintenance, which resulted in its disconnection and a subsequent loss of engine power on approach for landing.
- [NTSB CEN20FA075](https://openairdocs.org/ntsb/CEN20FA075.md): Cessna 182 · Chatham, LA · Accident · 3 fatal · Class 3 · Field · Final report · Feb 6, 2020 · N60381 · Destroyed
  > The pilot’s encounter with icing in-flight, which resulted in a loss of control and impact with terrain.
- [NTSB CEN16FA373](https://openairdocs.org/ntsb/CEN16FA373.md): Cessna 182 · Ephraim, WI · Accident · 2 fatal · Field investigation · Final report · Sep 19, 2016 · N2012F · Destroyed
  > The pilot's improper decision to execute a maneuvering approach at low altitude during night conditions, which resulted in controlled flight into terrain.
- [NTSB ERA16FA100](https://openairdocs.org/ntsb/ERA16FA100.md): Cessna 182 · Mobile, AL · Accident · 2 fatal · Field investigation · Final report · Feb 2, 2016 · N784CP · Destroyed
  > The pilot's loss of airplane control during a missed approach in instrument meteorological conditions due to spatial disorientation. Contributing to the accident was the pilot's inadequate preflight and inflight weather planning which resulted the pilot's…
- [NTSB CEN13FA269](https://openairdocs.org/ntsb/CEN13FA269.md): Cessna 182T · Fredericksburg, TX · Accident · 2 fatal · Field investigation · Final report · May 9, 2013 · N6197H · Destroyed
  > The pilot’s failure to maintain airspeed while transitioning from instrument to visual flight while still in instrument conditions, which resulted in an inadvertent stall.
- [NTSB FTW03FA114](https://openairdocs.org/ntsb/FTW03FA114.md): Cessna 182S · Fayetteville, AR · Accident · 1 fatal · Field investigation · Final report · Mar 21, 2003 · N97TD · Destroyed
  > The pilot's failure to fly a stabilized, published instrument approach procedure, which resulted in a collision with trees and terrain. Factors were the low clouds and night conditions.

## 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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41808'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41808&fatal=1

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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.