ASN Wikibase Occurrence # 358610
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| Date: | Saturday 22 July 1995 |
| Time: | 10:10 LT |
| Type: |  Cessna 172F |
| Owner/operator: | Private |
| Registration: | N8599U |
| MSN: | 17252499 |
| Total airframe hrs: | 1921 hours |
| Engine model: | CONTINENTAL O-300-C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Wyandotte, IN -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Coshocton, OH |
| Tell City, IN (KTEL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT RATED PASSENGER REPORTED THAT THE ENGINE BEGAN TO 'POP' AND THE ENGINE SPEED DROPPED TO 1,400 RPM. THE PILOT SWITCHED FUEL TANKS AND APPLIED CARBURETOR HEAT, BUT THE ENGINE DID NOT RECOVER. THE AIRPLANE WAS OVER HILLY/FOREST TERRAIN WITH ONLY A SMALL WHEAT FIELD. DURING AN ATTEMPTED FORCED LANDING. THE PILOT MADE A 50 DEGREE TURN TO ALIGN THE AIRPLANE WITH THE FIELD. THE AIRPLANE IMPACTED THE TERRAIN AND SUSTAINED SUBSTANTIAL DAMAGE TO THE FUSELAGE, WINGS, AND EMPENNAGE. A COMPRESSION CHECK REVEALED COMPRESSIONS OF 50, 55, 10, 66, 62, AND 58 POUNDS PER SQUARE INCH IN CYLINDERS ONE THROUGH SIX RESPECTIVELY. DURING THE CHECK OF THE NUMBER THREE CYLINDER, AIR COULD BE HEARD FLOWING INTO THE INTAKE MANIFOLD. EXAMINATION OF THE NUMBER THREE INTAKE VALVE REVEALED 'CONSIDERABLE' CARBON UNDER THE INTAKE VALVE SEAT AND SCRATCHES IN THE VALVE STEM.
Probable Cause: the number three intake valve became stuck (seized), which resulted in a loss of engine power. The lack of suitable terrain for a forced landing was a related factor.
Accident investigation:
 |
|
Sources:
NTSB CHI95LA230
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Mar-2024 16:14 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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