# Incident 20100816043309I: Cessna 152, Bunnell, FL, August 16, 2010

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: August 16, 2010, 11:00 local time
- Place: Bunnell, FL
- Damage: No damage
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 29.4661° N, 81.2578° W: Placed by OpenAirDocs: center of Bunnell, FL, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.4661&lon=-81.2578&mi=10
- Aircraft: N24541, a cancelled registration (https://openairdocs.org/deregistered/N24541-2020-08-06) (OpenAirDocs)
- Registry model: Cessna 152 (registry code 2071835, https://openairdocs.org/model/cessna-152) (OpenAirDocs)
- Registry engine: Lycoming 0-235 series (registry code 41505, https://openairdocs.org/engine/lycoming-0-235-series) (OpenAirDocs)
- Reported make and model: CESSNA 152
- Reported engine: LYCOMING 0-235 SERIES
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 0 total, 0 in this make and model, 0 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20100816043309I

## Narrative

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

SUMMARY: PARTIAL POWER LOSS LEADS TO SUCCESSFUL OFF-AIRPORT LANDING.  NO INJURIES, NO AIRFRAME DAMAGE. NARRATIVE:CREW REPORTED PRE-TAKEOFF RUNUP SATISFACTORY.  DURING CRUISE, AFTER RECOVERY FROM MANEUVERING FLIGHT, ENGINE LOST PARTIAL POWER.  CREW STATED RPM RAPIDLY DECAYED FROM 2300 TO BETWEEN 1700-1800, WITH SIGNIFICANT VIBRATION NOTED.  CARB HEAT APPLIED WITH NO APPRECIABLE EFFECT.  AT FULL THROTTLE, RPM RECOVERED TO APPROX 2000 WITH INCREASED VIBRATION.  CREW UNABLE TO MAINTAIN ALTITUDE.  ELECTED TO LAND IN OPEN FIELD ALONG WEST HIGHWAY 100 APPROX 10 NM WEST OF BUNNELL, FL.  AIRCRAFT SUCCESSFULLY LANDED WITH NO AIRFRAME OR PROPELLER DAMAGE.  APPROX 0.9 HOURS HAD ELAPSED ON HOBBS METER SINCE DISPATCH.  ON-SCENE FUEL QUANTITY AND QUALITY APPEARED SATISFACTORY.  FUEL SAMPLES REVEALED NO OBSERVABLE CONTAMINATION.  OIL QUANTITY 5 QT WITH PROP EASY TO ROTATE.  ALL LOWER SPARK PLUGS REMOVED; #3 CYL SHOWED SIGNIFICANT OIL FOULING; ALL OTHERS SHOWED SIGNIFICANT LEAD FOULING.  #3 CYLINDER UNABLE TO DEVELOP COMPRESSION; CLOSER VISUAL INSPECTION REVEALED DAMAGE CONSISTENT WITH SWALLOWED VALVE (LATER DETERMINED TO BE EXHAUST VALVE); OBSERVED DAMAGE INCLUDED DEEP SCORING OR GOUGING OF PISTON HEAD.  SERVICE RECORDS REVEALED ENGINE HAD UNDERGONE ANNUAL INSPECTION ON 18 MAY 2010, INCLUDING SPARK PLUG SERVICING AND MAGNETO TIMING CHECK; TACH READINGS INDICATE ENGINE HAD ACCRUED NEARLY 63 HOURS SINCE THEN, AND NEARLY 550 HOURS SMOH.

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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