NTSB Identification: WPR10CA224
14 CFR Part 91: General Aviation
Accident occurred Monday, April 19, 2010 in Eleele, HI
Probable Cause Approval Date: 07/22/2010
Aircraft: Evolution Trikes REVO, registration: N98EV
Injuries: 2 Uninjured.
NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.
The sport instructor pilot reported that during a student pilot’s first dual instructional flight, the engine lost power while on a 1.5 mile final to land. The instructor made a forced landing on a dirt road during which the trike nosed over. Post accident examination of the trike revealed 1.2 gallons of fuel remained in the tank, which is at or below the empty markings of the fuel tank. The manufacturer reported that the unusable fuel level is 1.4 gallons. The aircraft was equipped with a fuel monitoring system that activates once the fuel level drops below 2.7 gallons. The pilot told witnesses that he had observed the low fuel warning on the instrument panel. The aircraft flight manual had a typographical error, which stated the unusable fuel was 0.4 gallons. As a result of this accident investigation the manufacturer corrected the error and reissued the corrected page to the aircraft flight manual.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: A loss of engine power as a result of fuel exhaustion due to the pilot's improper decision to continue the flight after the low fuel warning. Contributing to the accident was the typographical error in the flight manual concerning the unusable fuel quantity. Full narrative available
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