# Incident 20230824014449I: Cessna 172N, Shelbyville, IN, August 24, 2023

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: August 24, 2023, 15:00 local time
- Place: Shelbyville, IN
- Damage: No damage
- Phase of flight: Maneuver
- Location: 39.5466° N, 85.7768° W: Placed by OpenAirDocs: center of Shelbyville, IN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.5466&lon=-85.7768&mi=10
- Aircraft: N6196D, registered now (https://openairdocs.org/aircraft/N6196D) (OpenAirDocs)
- Registry model: Cessna 172N (registry code 2072434, https://openairdocs.org/model/cessna-172n) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Reported engine: LYCOMING 0-320 SERIES
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 1,100 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20230824014449I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON AUGUST 24, 2023, A FLIGHT INSTRUCTOR AND A STUDENT PILOT PLANNED ON A FLIGHT UNDER 14 CFR § 61.  THE FLIGHT INSTRUCTOR STATED THE PLAN FOR THE FLIGHT WAS TO CONDUCT TRAINING FOR THE STUDENT PILOT. THE FLIGHT INSTRUCTOR STATED HE BRIEFED THE STUDENT PILOT ON THE LESSON AND PRE-FLIGHTED THE AIRPLANE. THE FLIGHT INSTRUCTOR STATED THAT THE AIRPLANE WAS OPERATING WITHIN NORMAL LIMITATIONS DURING THE ENGINE RUN-UP CHECK. THE FLIGHT INSTRUCTOR STATED THE INITIAL CLIMB OUT SEEMED NORMAL, MAYBE A LITTLE SLOWER, THIS WAS ATTRIBUTED TO A HIGH-DENSITY ALTITUDE. THE FLIGHT INSTRUCTOR STATED ONCE IN CRUISE FLIGHT THE TACHOMETER WAS INDICATING ~2000 RPM AT FULL THROTTLE. THE FLIGHT INSTRUCTOR STATED HE LEANED THE MIXTURE RESULTING IN THE TACHOMETER INCREASING TO 2,400 RPM.  THEN THE FLIGHT INSTRUCTOR STATED HE SAW THE RPM DROPPING AND HE TURNED ON THE CARBURETOR HEAT AS HE SUSPECTED CARBURETOR ICING.  THE FLIGHT INSTRUCTOR STATED THIS RESULTED IN A FURTHER DROP OF RPM AND THE ENGINE BEGAN TO SPUTTER. THE FLIGHT INSTRUCTOR STATED HE TOOK CONTROL FROM THE STUDENT AND TURNED TOWARDS THE NEAREST AIRPORT, THEN THE ENGINE STOPPED OPERATING. THE FLIGHT INSTRUCTOR STATED DUE TO OBSTRUCTIONS THAT HE FELT COULD NOT BE CLEARED ON THE APPROACH TO THE AIRPORT, HE TURNED TOWARDS AN OPEN FIELD WHILE ACCOMPLISHING THE ENGINE TROUBLESHOOTING CHECKLIST.  THE FLIGHT INSTRUCTOR STATED THAT AS THE ENGINE WAS STILL NOT PRODUCING POWER, HE COMPLETED THE ENGINE SECURING CHECKLIST.  THE FLIGHT INSTRUCTOR STATED HE LANDED THE AIRPLANE IN THE FIELD WITHOUT INJURY TO PERSONS OR ANY DAMAGE TO THE AIRPLANE. A CERTIFICATED AIRFRAME AND POWERPLANT MECHANIC WITH AN INSPECTION AUTHORIZATION STATED HE WAS CALLED TO INSPECT AND TROUBLESHOOT THE ENGINE FAILURE. HE STATED THAT HE HAD DETERMINED THAT THE AIRPLANE HAD A DUAL MAGNETO UNIT FAILURE.

## Other reports on N6196D (1)

Matched to the same aircraft by N-number and date.

- [Incident 19870524029439I](https://openairdocs.org/incident/19870524029439I), May 24, 1987: Cessna 172N (N6196D), Sacramento, CA. Landed on airport without damage after power loss at cruise. Fuel selector valve handle slipped. Stopping fuel flow

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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