WPR11CA419 · Cessna TU206F
Ellis Charles T Trustee Cessna TU206F · Accident: fuel exhaustion en route
From Helena Regional Airport (HLN) to King County International Airport - Boeing Field (BFI)
Event
- NTSB case
- WPR11CA419
- 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
Cessna TU206F
- Aircraft type
- Cessna 206
- 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
- N338F
- Operator
- Ellis Charles T Trustee
- Onboard fatalities
- Unknown
- Route
- From Helena Regional Airport (HLN), Helena, MTTo King County International Airport - Boeing Field (BFI), Seattle, WA
- 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 · descent
- 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 › 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 pilot stated that he began the cross-country flight with 4 hours of fuel onboard for the estimated 3-hour flight. While over an airport along the route of flight, he found that the headwind was much stronger than forecast. He calculated that he had 1 hour of fuel remaining and that the remaining flight time to his destination was 30 minutes. As he approached his destination, he was receiving vectors from an air traffic controller when the airplane’s engine sputtered and stopped producing power. The pilot successfully restarted the engine. However, it soon stopped producing power again and would not restart. In the dark night, he performed a forced landing to a small opening in the trees. The first rescue personnel on scene reported that they did not detect the smell of aviation fuel and the pilot reported to rescuers that “he believed he had run out of fuel and that the engine just quit on him.” The airplane’s fuselage was bent upwards immediately behind the cabin area, and both wings were bent and wrinkled.
Probable cause
The total loss of engine power as a result of fuel exhaustion due to the pilot's inadequate in-flight planning.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR11CA419
- Event ID
- 20110901X11509
- Case number
- WPR11CA419
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2011-08-31.
- API snapshot SHA-256: 9da41810f2bda0027536b421baeee1f39529c7740f36ec9f3d191214434a6a07; retrieved 2026-09-15T16:41:12.070Z.