ASN Wikibase Occurrence # 176616
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| Date: | Tuesday 2 June 2015 |
| Time: | 19:55 |
| Type: |  Mooney M20K 231 |
| Owner/operator: | Private |
| Registration: | N3567H |
| MSN: | 25-0423 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 1340 hours |
| Engine model: | Continental TSIO-360-GB1 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Fresno Chandler Executive Airport (KFCH), Fresno, CA -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Shafter, CA (MIT) |
| Sacramento, CA (MCC) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot was conducting a personal cross-country flight. During cruise, the engine experienced a catastrophic failure and a total loss of power. The pilot performed a forced landing to an airport, landed long, and collided with an airport fence. Postaccident examination of the engine revealed internal damage consistent with the initial failure of the No. 1 piston and connecting rod assembly, most likely at the piston end, which caused a cascading failure of the adjacent piston and rod assemblies. Damage to the engine components precluded an accurate assessment of the specific initiating event, and evidence suggested that the engine contained oil at the time of the failure.
The engine had been involved in a propeller strike accident about 310 flight hours prior, which required an engine teardown, examination, and replacement of two connecting rods and one piston pin. Maintenance records did not disclose which rods were replaced. Following the repair, the engine went through a 10-year period of inactivity, during which time internal corrosion occurred. No precautionary steps were taken to monitor the effects of the corrosion, such as oil filter examination or oil analysis. The extent to which the corrosion contributed to the failure of the No. 1 piston and connecting rod assembly could not be determined.
Probable Cause: A total loss of engine power during cruise flight due to a failure of the No. 1 piston and connecting rod assembly.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=3567H
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Jun-2015 15:05 | Geno | Added |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 19-Aug-2017 13:53 | ASN Update Bot | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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