CEN18LA302 · Beech A36
Beech A36 · Accident: loss of engine power (total) on approach
From Poplar Grove Airport (C77) to Brainerd Lakes Regional Airport (BRD)
Event
- NTSB case
- CEN18LA302
- 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
Beech A36
- Aircraft type
- Beechcraft 36
- 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
- N1856W
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Poplar Grove Airport (C77), Poplar Grove, ILTo Brainerd Lakes Regional Airport (BRD), Brainerd, MN
- Aircraft age
- About 45 years (built 1973)
- 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 · VFR pattern final
- 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)
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Tree(s)
- 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
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The pilot and passenger were on a 2-hour personal flight. Midway to the destination, the pilot switched the fuel selector from the right fuel tank to the left fuel tank. While on a visual approach about 1 hour later, the engine lost power. The pilot's attempts to restart the engine were unsuccessful, and he made a forced landing into trees, which resulted in damage to both wings.
One week before the accident, while the pilot was flying the same route, the engine lost power while on a visual approach. The pilot switched the fuel selector from the left tank to the right tank and landed uneventfully. After landing, he switched from the right tank to the left tank and repeated the process twice; the engine lost power both times with the left tank selected. Maintenance personnel were unable to determine a cause for the power loss events, and the pilot flew the airplane back to his home airport without incident. The accident occurred on the next flight.
A review of engine data indicated that the four power loss events occurred when the left fuel tank was about half full (19 gallons) and that they were consistent with an interruption of fuel supply to the engine.
Examination of the fuel system revealed that the fuel selector left detent was worn; however, because both in-flight power loss events occurred without the pilot moving the fuel selector, this issue is not relevant to the accident. No other anomalies were found with the fuel system, including the left-wing fuel tank (bladder) or venting system.
Although the investigation was unable to identify any anomalies with the left fuel tank and venting system, the circumstances of the power loss events are consistent with a loss of fuel flow from the left tank.
Probable cause
Total loss of engine power due to a fuel supply interruption from the left tank for reasons that could not be determined, which resulted in the subsequent forced landing into trees.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN18LA302
- Event ID
- 20180731X44941
- Case number
- CEN18LA302
- 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, coordinates. 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: 7af8f6b7c614866505fda9e17d6d375b6b5851778a24d044b94fc92741d47f21; retrieved 2026-09-16T08:01:46.609Z.