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WPR10CA224 · Evolution Trikes REVO

19 Apr 2010 · Eleele, HI, United States

Birds in Paradise Evolution Trikes REVO · Accident: fuel exhaustion on approach

From Port Allen Airport (PAK) to Port Allen Airport (PAK)

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Event

NTSB case
WPR10CA224
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Evolution Trikes REVO

Category
Weight-Shift
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N98EV
Onboard fatalities
Unknown
Route
From Port Allen Airport (PAK), Eleele, HITo Port Allen Airport (PAK), Eleele, HI
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Approach
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Fuel exhaustion
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Aircraft › Aircraft systems
  • Aircraft › Fluids/miscellaneous hardware
  • Personnel issues › Action/decision
  • Personnel issues › Task performance

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

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.

Probable cause

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.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record WPR10CA224
Event ID
20100504X33706
Case number
WPR10CA224
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 36d6d5e99e7648e05eba3bb126781a73a8ee4e0e386d1e250f4bfcc363d78658; retrieved 2026-09-15T13:58:47.514Z.