ASN Wikibase Occurrence # 133327
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| Date: | Saturday 30 November 1996 |
| Time: | 10:34 LT |
| Type: |  Cessna T210N |
| Owner/operator: | Scottsdale Flyers LLC |
| Registration: | N4788C |
| MSN: | 21063625 |
| Total airframe hrs: | 5374 hours |
| Engine model: | Continental TSIO-520-R |
| Fatalities: | Fatalities: 0 / Occupants: 5 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Scottsdale, AZ -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | , AZ (KSDL) |
| San Diego, CA (KMYF) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While the airplane was climbing after departure, the engine lost power, then the pilot made a forced landing, and the airplane was damaged. Postaccident examination of the engine revealed that the piston in the #2 cylinder had failed. The #2 piston crown was severely eroded over 80 percent of the piston circumference. Erosion, scoring, and metal transfer was evident on the piston skirts. Before removal of the #2 cylinder, heat discoloration was noted on the cylinder base. A report from the engine manufacturer stated that the failure was due to detonation/preignition. The entire fuel system, both magnetos, and the turbo controller were functionally tested at the respective manufacturer's facilities. All of the components met the FAA approved test data.
Probable Cause: detonation/pre-ignition for unknown reason(s), which resulted in failure of the number two piston, loss of engine power, and a subsequent forced landing on rough/uneven desert terrain.
Accident investigation:
 |
|
Sources:
NTSB LAX97LA058
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 08-Apr-2024 17:48 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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