ASN Wikibase Occurrence # 45800
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Date: | Tuesday 24 July 2001 |
Time: | 13:46 |
Type: | Kolb Sling Shot |
Owner/operator: | Private |
Registration: | N56CV |
MSN: | SS-00-1-00025 |
Total airframe hrs: | 53 hours |
Engine model: | Rotax 582 |
Fatalities: | Fatalities: 1 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Goodview, MN -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Private |
Departure airport: | Mankato, MN (MKT) |
Destination airport: | Winona, MN (ONA) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:Witnesses reported hearing the airplane's engine quit operating and observed the airplane gliding towards an open field. The witnesses stated the airplane entered a steep turn, stalled, and impacted the terrain. Witnesses who responded to the accident site reported there was fuel present in all three fuel tanks. No anomalies were found with the flight control systems that could be associated with any pre-impact condition. The fuel system was modified from the kit-supplied construction drawings. The two main fuel tanks were vented through their handles using flexible tubing. The two vent lines initiating from the tank handles combined at a T-fitting and a single flexible vent line was run from the fitting down between the fuel tanks. The terminating end of the vent line was cut perpendicular to the line and the vent line was not secured. The two main fuel tanks were mounted on a metal tray lined with a flexible neoprene pad. The unsecured vent line was able to move along the bottom of the tray and make contact with the neoprene liner. The engine was mounted on a test stand and was configured with the original aircraft's fuel filter, fuel pump, gascolator, and pulse pump. The engine started without any anomalies. The engine developed full power at 6,500 rpm during the full throttle test. Both ignition systems functioned without any anomalies. No anomalies were found with the engine or its related systems that could be associated with any pre-impact condition.
Probable Cause: The loss of engine power due to fuel starvation caused by a blocked, unsecured, fuel vent line. Contributing to the accident was the pilot's failure to maintain adequate airspeed during the forced landing which resulted in an inadvertent stall at a low altitude.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CHI01LA237 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB:
https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20010803X01594&key=1 Revision history:
Date/time | Contributor | Updates |
28-Oct-2008 00:45 |
ASN archive |
Added |
21-Dec-2016 19:24 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
10-Dec-2017 11:52 |
ASN Update Bot |
Updated [Cn, Operator, Source, Narrative] |
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