ASN Wikibase Occurrence # 360426
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| Date: | Wednesday 25 May 1994 |
| Time: | 19:00 LT |
| Type: |  Mooney M20J |
| Owner/operator: | Private |
| Registration: | N50105 |
| MSN: | 24-3059 |
| Total airframe hrs: | 572 hours |
| Engine model: | LYCOMING IO-360 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Willcox, AZ -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Fort Stockton, TX |
| Scottsdale, AZ (KSDL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PROPELLER RPM SURGED AND AS THE PILOT ATTEMPTED TO REDUCE POWER, THE ENGINE VIBRATED VIOLENTLY AND STOPPED WHEN THE THROTTLE WAS CLOSED. A FORCED LANDING WAS MADE TO A MESQUITE AND SAGE BRUSH COVERED DESERT. DURING ROLLOUT THE AIRCRAFT IMPACTED SEVERAL LARGE CLUSTERS OF MESQUITE AND A FENCE RESULTING IN SUBSTANTIAL DAMAGE TO BOTH WINGS AND HORIZONTAL STABILIZERS. EXAMINATION OF THE 580 HOUR ENGINE REVEALED THAT TWO CONNECTING RODS HAD FAILED DUE TO LACK OF LUBRICATION. A BEARING WAS FOUND TO HAVE SPUN, BLOCKING THE ENGINE OIL FLOW. THE AIRPLANE HAD BEEN INVOLVED IN AN INCIDENT 108 HOURS PRIOR TO THE ACCIDENT IN WHICH THE ENGINE WAS OPERATED WITH LOW OIL QUANTITY AND LOW OIL PRESSURE.
Probable Cause: THE FAILURE OF THE CONNECTING ROD DUE TO LACK OF LUBRICATION. FACTORS WERE THE PREVIOUS DAMAGE TO THE ENGINE, AND THE UNSUITABLE TERRAIN AT THE PILOT'S DISPOSAL FOR THE FORCED LANDING.
Accident investigation:
 |
|
Sources:
NTSB FTW94LA181
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 07:10 | ASN Update Bot | Added |
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