# NTSB CEN27LA025: Howell Mark R RV-8, N818TC, Geneseo, IL, October 21, 2026

- Type: NTSB accident investigation
- Classification: Accident · Limited investigation · Investigation open
- Date: October 21, 2026, 15:05 local (20:05 UTC)
- Place: Geneseo, IL
- Location: 41.4513° N, 90.1548° W: Placed by OpenAirDocs: center of Geneseo, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.4513&lon=-90.1548&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Defining event: [Takeoff: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341)
- Status: Investigation ongoing
- NTSB office: Central Region
- NTSB case key (mKey): 204051
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN27LA025
- Latest NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/204051/pdf
- Page: https://openairdocs.org/ntsb/CEN27LA025

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Takeoff: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341) (defining event)

## Aircraft

- Registration: [N818TC](https://openairdocs.org/aircraft/N818TC), registered now, S/N 001, built 2024 (OpenAirDocs)
- Reported make and model: HOWELL MARK R RV-8
- Registry model: [Howell Mark R RV-8](https://openairdocs.org/model/howell-mark-r-rv-8) (registry code 05642P4) (OpenAirDocs)
- Registry engine: [Lycoming YIO-390 series](https://openairdocs.org/engine/lycoming-yio-390-series) (registry code 42418, reciprocating) (OpenAirDocs)
- Flight: Personal, Part 91
- Registered owner: Howell Mark R

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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