# Final NTSB investigations: Lycoming YIO-390 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 ANC25LA111](https://openairdocs.org/ntsb/ANC25LA111.md): 217whiskeymike SQ12 · McGrath, AK · Accident · No injuries · Class 4 · Limited · Final report · Sep 20, 2025 · N217WM · Substantial damage
  > The pilot’s failure to maintain clearance from a hole in the tundra, which resulted in impact with terrain.
- [NTSB ANC25LA047](https://openairdocs.org/ntsb/ANC25LA047.md): Brian Peck RV-14 · Camas, WA · Accident · No injuries · Class 4 · Limited · Final report · Jun 10, 2025 · N991RS · Substantial damage
  > The pilot’s failure to maintain directional control during landing roll which resulted in a runway excursion.
- [NTSB ERA25LA374](https://openairdocs.org/ntsb/ERA25LA374.md): Flying Cloud AL18 · Ridgeland, SC · Accident · No injuries · Class 4 · Limited · Final report · Jun 7, 2025 · N859SS · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during landing.
- [NTSB CEN24LA035](https://openairdocs.org/ntsb/CEN24LA035.md): Grassman Timothy B RV-14A · Houston, TX · Accident · No injuries · Class 4 · Limited · Final report · Nov 3, 2023 · N5875G · Substantial damage
  > The bird strike to the airplane’s vertical stabilizer during an approach for landing.
- [NTSB CEN23FA359](https://openairdocs.org/ntsb/CEN23FA359.md): Vans RV14 · Virden, IL · Accident · 1 fatal · Class 3 · Field · Final report · Aug 12, 2023 · N6161 · Substantial damage
  > The pilot/builder’s improper configuration of the canopy latch micro switch, which incorrectly signaled a closed canopy before flight that resulted in an inflight opening of the airplane’s canopy, an upset of the airplane, and a loss of control from which the…
- [NTSB ERA23LA195](https://openairdocs.org/ntsb/ERA23LA195.md): Richard Spatz RV-14A · Fallston, MD · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 13, 2023 · N412RS · Substantial damage
  > The pilot’s failure to discontinue an unstabilized approach, resulting in an aerodynamic stall and collision with terrain.
- [NTSB WPR19LA189](https://openairdocs.org/ntsb/WPR19LA189.md): Vans RV14 · Aumsville, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 16, 2019 · N365EM · Destroyed
  > An inflight fire that originated in the engine compartment for reasons that could not be determined based on available evidence.
- [NTSB GAA18CA379](https://openairdocs.org/ntsb/GAA18CA379.md): Dan Jelinek Backcountry Supercub · Douglas, WY · Accident · No injuries · Data collection · Final report · Jun 11, 2018 · N7455 · Substantial damage
  > The pilot’s overcorrection with rudder during takeoff, which resulted in a loss of directional control.

## 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 ('42418'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=42418&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.