# NTSB investigations: Continental IO-550-N: Unknown or undetermined

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 GAA27WA023](https://openairdocs.org/ntsb/GAA27WA023.md): Cirrus Design SR22 · Leeds, United Kingdom · Accident · Serious injuries · Foreign investigation · Oct 28, 2026 · N771SR
- [NTSB CEN25FA321](https://openairdocs.org/ntsb/CEN25FA321.md): Lancair NLA-275-FR-C · Bradley, AR · Accident · 1 fatal · Class 3 · Field · Preliminary report · Aug 19, 2025 · N345LA · Destroyed
  > On August 18, 2025, about 2133 central daylight time, a Lancair NLA-275-FR-C airplane, N345LA, was destroyed when it was involved in an accident near Bradley, Arkansas. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal…
- [NTSB CEN23LA297](https://openairdocs.org/ntsb/CEN23LA297.md): Cirrus Design SR22 · Boelus, NE · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 12, 2023 · N151SR · Substantial damage
  > Loss of engine power for reasons that could not be determined.
- [NTSB ERA23FA130](https://openairdocs.org/ntsb/ERA23FA130.md): Cirrus Design SR22 · Duluth, MN · Accident · 1 fatal · Class 3 · Field · Final report · Feb 24, 2023 · N929DR · Destroyed
  > A rapid descent and subsequent collision with terrain for reasons that could not be determined based on the available evidence.
- [NTSB CEN22FA111](https://openairdocs.org/ntsb/CEN22FA111.md): Cirrus Design SR22 · Hutchinson, MN · Accident · 1 fatal · Class 3 · Field · Final report · Jan 31, 2022 · N227BD · Substantial damage
  > The reduction in fuel flow and subsequent partial loss of engine power after takeoff for reasons that could not be determined.
- [NTSB WPR21LA068](https://openairdocs.org/ntsb/WPR21LA068.md): Cirrus Design SR22 · Ogden, UT · Accident · Serious injuries · Class 3 · Limited · Final report · Dec 10, 2020 · N577CP · Substantial damage
  > The partial loss of engine power for reasons that cannot be determined due to lack of available evidence.
- [NTSB CEN12FA251](https://openairdocs.org/ntsb/CEN12FA251.md): Cirrus Design SR22 · Newcomerstown, OH · Accident · 1 fatal · Field investigation · Final report · Apr 21, 2012 · N110EB · Substantial damage
  > The pilot’s loss of airplane control in instrument meteorological conditions due to his distraction by electrical system anomalies, which resulted in an uncontrolled descent. The reason for the electrical system anomalies could not be determined.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17215')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '000'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/000/cases?engine=17215

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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.