# Incident 19970810027499I: Cessna 150F, West Middlesex, PA, August 10, 1997

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: August 10, 1997, 16:15 local time
- Place: West Middlesex, PA
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 41.1742° N, 80.4555° W: Placed by OpenAirDocs: center of West Middlesex, PA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.1742&lon=-80.4555&mi=10
- Aircraft: N6674F, registered now (https://openairdocs.org/aircraft/N6674F) (OpenAirDocs)
- Registry model: Cessna 150F (registry code 2071814, https://openairdocs.org/model/cessna-150f) (OpenAirDocs)
- Registry engine: Continental 0-200 series (registry code 17020, https://openairdocs.org/engine/continental-0-200-series) (OpenAirDocs)
- Reported make and model: CESSNA 150F
- Reported engine: CONT O200A
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 260 total, 225 in this make and model, 30 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19970810027499I

## Narrative

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

NARRATIVE: WHILE CLIMBING THROUGH 2000 FEET MSL, THE ENGINE STARTED LOSING POWER. OPERATION WAS SMOOTH BUT WOULD NOT HOLD ALTITUDE. THROTTLE AND MIXTURE CONTROLS WERE CHECKED WITHOUT RESULTS. AN UNEVENTFUL EMERGENCY LANDING WAS MADE. MAINTENANCE INVESTIGATION REVEALED #2 CYLINDER INTAKE VALVE SEAT HAD A LARGE AMOUNT OF CARBON BUILD UP PREVENTING THE VALVE FACE FROM SEATING. SUBMISSION OF THIS REPORT COMPLETES THIS INVESTIGATION.

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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