ASN Wikibase Occurrence # 160227
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| Date: | Friday 6 September 2013 |
| Time: | 14:45 |
| Type: |  Sonex Aircraft Sonex |
| Owner/operator: | Private |
| Registration: | N293SX |
| MSN: | 293 |
| Year of manufacture: | 2008 |
| Total airframe hrs: | 183 hours |
| Engine model: | Jabiru 3300L |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Waxhaw, Union County, NC -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Wadesboro, NC (AFP) |
| Woodruff, SC (SC00) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
About 15 to 20 minutes after establishing the airplane in cruise flight, the pilot, who was also the owner/builder of the experimental amateur-built airplane, noticed that the engine rpm had dropped from the previously established 2,600 to 1,800. The engine continued to operate at this reduced power setting for about 30 to 60 seconds before it completely stopped producing power. The pilot subsequently performed a forced landing into trees, which resulted in substantial damage to the airframe. Postaccident examination of the engine revealed that the cable providing power to the crankshaft position sensor was routed next to the exhaust system and that it had melted. Subsequently, one of the wires electrically shorted to the engine block, which rendered the electronic fuel injection system inoperative. Replacement of the damaged cable restored the fuel injection system to normal function.
Probable Cause: The pilot/owner/builder’s improper routing of the engine’s crankshaft position sensor cable next to the engine’s exhaust system, which resulted in a total loss of engine power in flight.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 07-Sep-2013 05:42 | Geno | Added |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Nov-2017 09:14 | ASN Update Bot | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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