ASN Wikibase Occurrence # 369583
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| Date: | Thursday 3 November 1988 |
| Time: | 16:00 LT |
| Type: |  Beechcraft S-35 |
| Owner/operator: | Private |
| Registration: | N977KM |
| MSN: | D 7366 |
| Year of manufacture: | 1964 |
| Total airframe hrs: | 2905 hours |
| Engine model: | CONTINENTAL IO-520-BA |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Matheson, CO -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Kansas City, MO (MKC |
| Falcon, CO (KOOV) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PRIVATE PLT AND A FRIEND WERE ENROUTE FOR A HUNTING TRIP. THIRTY MILES EAST OF A REFUELING STOP, THE PILOT HEARD A LOUD KNOCK. OIL COVERED THE WINDSCREEN AND THE ENGINE SEIZED. THE PLT LOOKED OUT THE SIDE WINDOW VENT TO SELECT A FORCED LANDING AREA. A WHEELS UP LANDING WAS PERFORMED IN A GRAIN FIELD. AFTER EXITING THE ACFT, THE PLT SAW THAT THE PROPELLER WAS MISSING. DAMAGE WAS REPORTED AS SUBSTANTIAL, BUT A POST INCIDENT INSPECTION REVEALED MINOR DAMAGE. THE PROPELLER WAS NOT FOUND BUT TWO SHEARED PROPELLER BOLTS, P/N A-2040 WERE FOUND IN THE COWLING. IN A PHONE CONVERSATION, A HARTZELL TECHNICAL REPRESENTATIVE, SAID THE PROPER BOLT FOR THIS INSTALLATION IS P/N A-1328-1. HE SAID P/N A-2040 WAS SUPERSEDED PRIOR TO 1970. LOG BOOKS SHOW THIS PROPELLER WAS OVERHAULED 83 FLIGHT HRS PRIOR TO THIS INCIDENT. THE REPAIR SHOP REPORTED THAT THE BOLTS THEY REMOVED WERE INSPECTED AND RE-INSTALLED IN THE HUB.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB DEN89IA028
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Mar-2024 16:08 | ASN Update Bot | Added |
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