SEA04LA062 · Davenport (Van's) RV-8F
Davenport (Van's) RV-8F · Accident: loss of engine power during initial climb
From Martin Field (S95) to Walla Walla Regional Airport (ALW)
Event
- NTSB case
- SEA04LA062
- 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
- 1 · 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
Davenport (Van's) RV-8F
- Aircraft type
- Davenport (van's) RV-8
- 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
- N284DM
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Martin Field (S95), College Place, WATo Walla Walla Regional Airport (ALW), Walla Walla, 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
- 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
- Pilot in command › Airspeed, not maintained
- Reason for occurrence undetermined
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 of the homebuilt RV-8F departed runway 23 executing a climbing right turn, followed by a second RV-8F about 300 feet behind. As the second aircraft climbed through 300-400 feet above ground the pilot observed the first aircraft roll wings level and commence a descent while simultaneously turning back toward the departure airport and then impacting the ground in a wings level flat pitch attitude. The aircraft slid about 25-30 feet across the ground along a 200 degree magnetic track and its "G" meter registered +10 G's. Post crash examination of the aircraft's Franklin engine, the throttle system and engine fuel pump and boost pump revealed no evidence of mechanical or fuel related malfunction. Fuel was found in both fuel tanks and throughout the fuel lines up to the engine.
Probable cause
A loss of engine power for undetermined reason(s) and the pilot's failure to maintain adequate flying airspeed during the forced landing. A contributing factor was the pilot's decision to attempt a turn at low altitude.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA04LA062
- Event ID
- 20040405X00421
- Case number
- SEA04LA062
- 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: e41cd324ca5717c8c1466e30d213de9f14c01b34ee71bd7356483713e5d87daf; retrieved 2026-09-20T18:30:55.697Z.