ASN Wikibase Occurrence # 133040
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| Date: | Sunday 11 June 1995 |
| Time: | 13:30 LT |
| Type: |  Cessna T210N |
| Owner/operator: | Barry G. Miller & Assoc Ins Sv |
| Registration: | N5436Y |
| MSN: | 21064205 |
| Total airframe hrs: | 1117 hours |
| Engine model: | CONTINENTAL TSIO-520-R |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Fall River Mill, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | Klamath Falls, OR |
| Cameron Park, CA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
AFTER LEVELING OFF AT CRUISE, THE ENGINE STARTED RUNNING ROUGH. A 2-INCH REDUCTION IN MANIFOLD PRESSURE RESULTED IN A METALLIC SOUND. ANOTHER 2-INCH REDUCTION RESULTED IN A LOUDER METALLIC SOUND. THE MANIFOLD PRESSURE THEN FELL TO 20 INCHES, THE OIL PRESSURE DROPPED TO ZERO, AND OIL BEGAN TO SPLATTER ON THE WINDSCREEN. A FORCED LANDING WAS MADE IN A LAVA FIELD SURROUNDED BY TREES. AFTER TOUCHING DOWN THE AIRCRAFT SLID AND NOSED OVER ON ITS BACK. POSTACCIDENT INSPECTION REVEALED THAT THE NO. 2 LOWER CONNECTING ROD BOLT HAD FRACTURED. MEASUREMENTS PERFORMED BY THE MANUFACTURER INDICATED THE ROD BOLT HAD BEEN UNDERTORQUED. THE ENGINE WAS LAST OVERHAULED 509 HOURS PRIOR TO THE ACCIDENT.
Probable Cause: Fatigue failure of the No. 2 lower connecting rod bolt as a result of improper torque during the last engine overhaul.
Accident investigation:
 |
|
Sources:
NTSB LAX95LA207
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Apr-2024 14:38 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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