ASN Wikibase Occurrence # 190800
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Date: | Thursday 20 October 2016 |
Time: | 13:50 |
Type: | Zenair STOL CH 750 |
Owner/operator: | Private |
Registration: | N8681 |
MSN: | 75-8681 |
Year of manufacture: | 2015 |
Engine model: | Rotax 912ULS |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Rice County, Morristown, MN -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Morristown, MN (NONE) |
Destination airport: | Morristown, MN (NONE) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The private pilot reported that he had started, warmed up, and then shut down the engine about 1 hour before the accident flight. Shortly after takeoff for the personal flight, the airplane’s engine lost total power. Subsequently, the pilot conducted a forced landing on a hill, which resulted in substantial damage to the nose landing gear, fuselage, and left wing.
The pilot said that he had fueled the airplane that morning with 82-octane automotive fuel that he had recently purchased from a service station. However, postaccident examination revealed that the fuel was yellow in color and smelled like “aged” automobile fuel. The top spark plugs appeared aged, and the electrodes were corroded, which could have affected engine performance. The airplane was not equipped with a fuel vapor return line to prevent fuel vapor lock. Given that old automotive fuel was found in the fuel system and that a fuel vapor return line had not been installed, it is likely that the engine lost power due to vapor lock. It is also likely that the corrosion of the spark plugs and the spacing of the electrode gaps contributed to the loss of engine power.
Probable Cause: A total loss of engine power due to fuel vapor lock. Contributing to the loss of engine power were the corrosion of the spark plugs and the spacing of the electrode gaps.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CEN17LA021 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB
FAA register:
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=8681 Location
Revision history:
Date/time | Contributor | Updates |
21-Oct-2016 18:25 |
Geno |
Added |
19-Aug-2017 14:56 |
ASN Update Bot |
Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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