SEA03LA154 · Bollinger RV-6A
Bollinger RV-6A · Accident: loss of engine power during initial climb
From Pangborn Memorial Airport (EAT) to Lake Chelan Airport (S10)
Event
- NTSB case
- SEA03LA154
- 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
Bollinger RV-6A
- Aircraft type
- Bollinger RV-6
- 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
- N272JT
- Operator
- L. Thomas Bollinger
- Onboard fatalities
- Unknown
- Route
- From Pangborn Memorial Airport (EAT), Wenatchee, WATo Lake Chelan Airport (S10), Chelan, 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
- Initial climb
- First occurrenceThe 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
- 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
- Fuel starvation; 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
- Fluid, fuel › Starvation
- Fuel system, vapor return system › Disengaged
- Owner/builder › Maintenance, installation, improper
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The experimental aircraft had just departed runway 30, and was about 400 feet above the ground, when it experienced a complete loss of engine power. The pilot then turned toward an empty field where he was going to attempt an engine-out forced landing, but he was unable to reach the field, and the aircraft impacted an orchard of young apple trees just short of the selected field. A post-accident inspection of the aircraft revealed that the screw holding the valve retaining faceplate on the Airflow Performance Purge Valve Assembly had come loose, allowing the valve mechanism to separate from its housing. It was further determined that the subject retaining screw had not been re-safetied after the builder removed the manufacturer-installed safety wire in order to change the angular configuration of the purge valve/flow divider assembly. A review of the Airflow Performance Installation and Service Manual revealed a narrative section stating that if removal of the valve is necessary, to make sure that the purge valve stop/faceplate screw is re-safetied.
Probable cause
Fuel starvation following the separation of a purge valve assembly as a result of the builders failure to re-safety the face retaining/stop screw on the fuel vapor purge valve after the safety wire on the subject screw was removed in order to change the angular mounting position of the valve. Factors include an apple orchard near the edge of the field that pilot was trying to glide to.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA03LA154
- Event ID
- 20030730X01228
- Case number
- SEA03LA154
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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: c7695b34bb5bd9cbb0eec7e091b7e23d55d143610583b258755d98e28a0878d7; retrieved 2026-09-21T09:24:35.320Z.