ASN Wikibase Occurrence # 371476
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| Date: | Sunday 28 February 1988 |
| Time: | 12:30 LT |
| Type: |  Cessna T210M |
| Owner/operator: | Private |
| Registration: | N761RP |
| MSN: | 21062460 |
| Total airframe hrs: | 2124 hours |
| Engine model: | CONTINENTAL TSIO-520-M |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Grosebeck, TX -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | Sinton, TX (T69) |
| Cirsicana, TX (KCRS) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT MADE A FORCED LANDING FOLLOWING ENGINE FAILURE. TEARDOWN EXAMINATION SHOWED THE NO. 4 EXHAUST VALVE HEAD HAD SEPARATED FROM THE STEM. METAL DEBRIS WAS FOUND IN THE OIL SUMP. THE NO. 1 CONNECTING ROD WAS SEPARATED FROM THE CRANKSHAFT. THERE WAS EVIDENCE OF IMPROPER LUBRICATION IN THE VICINITY OF THE NO. 1 CONNECTING ROD CRANKSHAFT JOURNAL. THE OIL PUMP WAS INTACT AND AN ADEQUATE SUPPLY OF LUBRICATING OIL WAS AVAILABLE. BEFORE GOING THROUGH THE PISTON TOP, THE SEPARATED EXHAUST VALVE HEAD MADE NUMEROUS DENTS AND ABRASIONS ON THE PISTON HEAD AND CYLINDER DOME. THE RESULTANT SANDBLASTING EFFECT OBLITERATED THE FRACTURE SURFACES.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB FTW88IA078
History of this aircraft
Other occurrences involving this aircraft
| 4 September 1989 | N761RP | Robert Kirk Fry | 0 | Rangely, CO | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Mar-2024 06:39 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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