CEN16LA012 · Refling RV8
Refling RV8 · Accident: loss of engine power (total) en route
From Bottineau Municipal Airport (D09) to Bottineau Municipal Airport (D09)
Event
- NTSB case
- CEN16LA012
- 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
Refling RV8
- Aircraft type
- Refling RV8
- 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
- UNREG
- Operator
- Charles Refling
- Onboard fatalities
- Unknown
- Route
- From Bottineau Municipal Airport (D09), Bottineau, NDTo Bottineau Municipal Airport (D09), Bottineau, ND
- Aircraft age
- Built the same year (2015)
- 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
- 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
- Loss of engine power (total)
- 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 › Fluids/miscellaneous hardware
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot/owner had just finished building the unregistered, noncertificated airplane and was conducting the flight to seat the piston rings on the newly installed engine. The pilot reported that, during the flight, he detected the odor of fuel in the cockpit. He continued the flight, and shortly after, the engine power decreased to idle. He continued to fly away from the airport while he tried to regain engine power. The pilot then turned back toward to the airport, and the engine subsequently experienced a total loss of power. The pilot determined that the airplane was not going to be able to reach the airport, so he chose a field for a forced landing. During the landing, the pilot lost directional control of the airplane due to the rough terrain, and the airplane impacted a parked tractor.
A postaccident examination of the engine revealed that the fuel line between the mechanical fuel pump and the fuel injection servo was disconnected. The pilot stated that the engine was delivered with this fuel line installed and that he did not check the tightness of the fuel lines after installing the engine on the airplane.
Probable cause
The pilot/builder’s failure to ensure that the fuel line was properly secured, which resulted in fuel starvation and the subsequent total loss of engine power.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN16LA012
- Event ID
- 20151014X11642
- Case number
- CEN16LA012
- 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: d0d06992eecf1899e178ffb432efb24e3fa96d5b16a2980678113165e295f71d; retrieved 2026-09-16T02:53:07.762Z.