ERA11LA418 · Floyd Joseph B RV6
Floyd Joseph B RV6 · Accident: fuel contamination en route
From Bowling Green Warren County Regional Airport (KBWG) to Wittman Regional Airport (KOSH)
Event
- NTSB case
- ERA11LA418
- 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
Floyd Joseph B RV6
- Aircraft type
- Floyd Joseph RV6
- Category
- Airplane
- 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
- N164BF
- Operator
- Floyd Joseph B
- Onboard fatalities
- Unknown
- Route
- From Bowling Green Warren County Regional Airport (KBWG), Bowling Green, KYTo Wittman Regional Airport (KOSH), Oshkosh, WI
- 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
- En route · cruise
- 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 contamination
- 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
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot/owner/builder stated that the airplane was in cruise flight at 7,000 feet mean sea level when he moved the fuel selector from the left main tank to the right auxiliary tank. The engine ran for a short time before it "stumbled," and lost power. The pilot’s efforts to restart the engine were unsuccessful, so he elected to shut off the fuel and perform a forced landing to a road. During the landing, the airplane struck a guardrail. Postaccident examination of the airplane revealed that several fuel system components and screens were partially or fully occluded with particles that resembled rust and material with the appearance, odor, and consistency of varnish. According to the pilot, his use of the auxiliary tanks was intermittent, and he had serviced them with fuel just prior to departing on the accident flight. He further explained that the varnish material from the right auxiliary tank had completely occluded the fuel line, filter, and "blocked all fuel supply to the engine," which resulted in a total loss of engine power.
Probable cause
A loss of engine power due to fuel contamination as a result of the pilot/owner's inadequate maintenance of the airplane's fuel system, which resulted in blockage of the fuel lines and filters.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA11LA418
- Event ID
- 20110724X13855
- Case number
- ERA11LA418
- 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: 2587fbe5feed4f5e6fda84d7bd60895b90369abed3e4eea102dd07da28c1c0d2; retrieved 2026-09-15T16:29:58.873Z.