ASN Wikibase Occurrence # 297235
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| Date: | Wednesday 29 May 2002 |
| Time: | 14:10 LT |
| Type: |  Beechcraft V35A Bonanza |
| Owner/operator: | Skyworld Aviation |
| Registration: | N45RG |
| MSN: | D-8768 |
| Total airframe hrs: | 2123 hours |
| Engine model: | Continental IO-520-BA |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Martinsburg, West Virginia -
 United States of America
|
| Phase: | Unknown |
| Nature: | Ferry/positioning |
| Departure airport: | Hagerstown-Wash. County Regional Airport, MD (HGR/KHGR) |
| Warrenton, VA (W66) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane was en route when the engine lost partial power. The pilot was unable to maintain airspeed or altitude, and elected to perform a forced landing to a field. During the landing, the airplane struck a fence post with the left wing. Examination of the engine crankcase halves revealed severe fretting at the number 2 main bearing bosses. The number 2 main bearing was broken into pieces and observed in the oil sump. Examination of the crankshaft revealed a fatigue fracture through the crank cheek between the number 2 main journal and the number 2 rod journal. The fracture surface and the journal surface were heat-tinted, and revealed evidence of rotational scoring. According to the engine logbook, the crankcase through bolts were torqued about 772 hours prior to the accident.
Probable Cause: Inadequate torque of the crankcase through bolts.
Accident investigation:
 |
|
Sources:
NTSB IAD02LA053
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Oct-2022 16:08 | ASN Update Bot | Added |
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