CHI07CA304 · Beech C23
Beech C23 · Accident: partial loss of engine power (non-mechanical) on approach
From Eddie Dew Memorial Airpark (1G8) to Carroll County-Tolson Airport (TSO)
Event
- NTSB case
- CHI07CA304
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Beech C23
- Aircraft type
- Beechcraft 23
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N9793L
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Eddie Dew Memorial Airpark (1G8), Toronto, OHTo Carroll County-Tolson Airport (TSO), Carrollton, OH
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Approach · VFR pattern final
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Partial loss of engine power (non-mechanical)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Fuel system, carburetor › Ice
- Terrain condition › Rough/uneven
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The airplane nosed over during a forced landing following the partial loss of engine power in the traffic pattern. The pilot reported that while on downwind he reduced engine power to initiate a descent. While on base leg the airplane descended below glide path. The engine did not respond to multiple throttle inputs and continued to operate at 1,500 rpm regardless of throttle position. The airplane was too low to make the airport and a forced landing was made to a cornfield. The airplane nosed over during landing. Twelve gallons of fuel were drained from the airplane after the accident. The fuel selector was positioned on the left tank, the mixture control was mid-travel, and the carburetor heat was "off." The throttle, mixture, and carburetor heat controls functioned properly. A post accident inspection did not reveal any anomalies consistent with a loss of engine power. The temperature and dew point in the vicinity of the accident site were 20 degrees and 17 degrees Celsius, respectively. Data indicated the possibility of moderate carburetor icing at cruise power and serious icing at descent power under those conditions.
Probable cause
The partial loss of engine power during approach due to carburetor ice and the uneven terrain encountered during the forced landing which caused the airplane to nose over. Weather conducive to carburetor icing was a contributing factor.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CHI07CA304
- Event ID
- 20071116X01802
- Case number
- CHI07CA304
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status, coordinates. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 2f3b8f7e332f68640a71fa889a8e10d0556dba1792a04e834b31ea5b04615bd4; retrieved 2026-09-21T18:23:27.048Z.