ASN Wikibase Occurrence # 360350
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| Date: | Sunday 5 June 1994 |
| Time: | 20:15 LT |
| Type: |  SIAI-Marchetti SF.260B |
| Owner/operator: | Private |
| Registration: | N943TA |
| MSN: | 11-01 |
| Year of manufacture: | 1970 |
| Total airframe hrs: | 3307 hours |
| Engine model: | LYCOMING IO-540-G |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Prospect, OR -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | Medford, OR (KMFD) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
ABOUT 45 MINUTES INTO THE FLIGHT, THE NUMBER SIX CONNECTING ROD EXPERIENCED A FATIGUE FAILURE, AND CAUSED CATASTROPHIC DAMAGE TO THE ENGINE CRANKCASE. THE FRACTURING OF THE CASE RESULTED IN A LOSS OF OIL, AND THE LOSS OF OIL PRESSURE RESULTED IN A RUNAWAY PROPELLER. THE PILOT THEN EXECUTED A SUCCESSFUL FORCED LANDING, BUT THE AIRCRAFT WAS DAMAGED WHEN IT COLLIDED WITH AN IRRIGATION PIPE AND A FENCE DURING THE LANDING ROLL. THE AIRCRAFT, WHICH IS USED EXTENSIVELY FOR PROFESSIONAL AIR SHOW AEROBATICS, IS POWERED BY AN ENGINE THAT IS CLASSED AS EXPERIMENTAL BECAUSE IT CONTAINS HIGH COMPRESSION PISTONS.
Probable Cause: THE FRACTURE OF A CONNECTING ROD. FACTORS INCLUDE NO SUITABLE FORCED LANDING SITE, AND A FENCE AND IRRIGATION SYSTEM IN THE FIELD WHERE THE FORCED LANDING TOOK PLACE.
Accident investigation:
 |
|
Sources:
NTSB SEA94LA138
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Mar-2024 20:46 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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