ASN Wikibase Occurrence # 353086
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| Date: | Saturday 3 July 1999 |
| Time: | 16:50 LT |
| Type: |  Cessna 172P |
| Owner/operator: | Auburn Flight Service Inc. |
| Registration: | N531PC |
| MSN: | 17274698 |
| Year of manufacture: | 1981 |
| Total airframe hrs: | 2218 hours |
| Engine model: | Lycoming O-320-D2J |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Auburn, WA -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Training |
| Departure airport: | (S50) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that shortly after takeoff from a touch-and-go landing, the engine began to lose power and eventually quit. A forced landing was made to a field. During the landing roll, the airplane was substantially damaged. An engine inspection found that the number one intake valve was stuck open. Further inspection found that the number one exhaust cam follower head broke in three pieces. Debris from the exhaust cam follower was found jammed between the cam and the cam follower to the number one intake plunger assembly of that cam follower. A section of the engine casing also broke away from around the number one intake cam follower. Maintenance records indicate that the engine total time was beyond manufacturer's recommendation for time between overhaul.
Probable Cause: Total mechanical failure of the hydraulic tappet. A factor was an overdue major overhaul per manufacturer's recommendations.
Accident investigation:
 |
|
Sources:
NTSB SEA99LA101
History of this aircraft
Other occurrences involving this aircraft
| 29 August 1982 | N53186 | Private | 0 | Blythe, CA | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 09-Mar-2024 10:10 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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