CEN13LA304 · ANKESTAR, Bradley D. RAND-ROBINSON KR2
ANKESTAR, Bradley D. RAND-ROBINSON KR2 · Accident: loss of engine power (partial) during takeoff
From Butler Co Regional Airport - Hogan Field (HAO) to Butler Co Regional Airport - Hogan Field (HAO)
Event
- NTSB case
- CEN13LA304
- 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
ANKESTAR, Bradley D. RAND-ROBINSON KR2
- Aircraft type
- Ankestar Bradley RAND-ROBINSON KR2
- 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
- N774A
- Operator
- Ankerstar Bradley D
- Onboard fatalities
- Unknown
- Route
- From Butler Co Regional Airport - Hogan Field (HAO), Hamilton, OHTo Butler Co Regional Airport - Hogan Field (HAO), Hamilton, OH
- 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
- Takeoff
- 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 (partial)
- 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 power plant
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot/owner, who also built the airplane, reported that, during the initial climb, the airplane stopped climbing about 30 ft above the ground and then experienced a loss of engine power. The airplane subsequently nosed over and impacted terrain. The pilot reported that he used automotive gasoline to fuel the airplane, which was powered by a Volkswagen engine with a POSA-type carburetor. Further, the engine was tightly cowled, but the gascolator on the airplane was not insulated and was mounted about 2 inches from the exhaust pipe. Airplanes configured in this manner are susceptible to vapor lock when operating with automotive gasoline. The circumstances of the accident are consistent with a loss of engine power due to vapor lock.
Probable cause
The loss of engine power due to vapor lock in the fuel system. Contributing to the accident was the operation of the airplane with automotive gasoline and the installation of noninsulated fuel components near heat sources in the engine compartment.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN13LA304
- Event ID
- 20130529X80542
- Case number
- CEN13LA304
- 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: 51d7eee6b7bb76bc113f9ece628401be5eceee2c0fe3c53bd36ef8939439103d; retrieved 2026-09-15T21:42:31.164Z.