LAX04LA038 · Cathaway RV-6A
Cathaway RV-6A · Accident: total loss of engine power (non-mechanical) en route
From Santa Paula Airport (SZP) to Santa Paula Airport (SZP)
Event
- NTSB case
- LAX04LA038
- 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
Cathaway RV-6A
- Aircraft type
- Cathaway 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
- N102RC
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Santa Paula Airport (SZP), Santa Paula, CATo Santa Paula Airport (SZP)
- 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 · cruise
- 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
- Total loss of engine power (non-mechanical)
- 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 exhaustion
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Fluid, fuel › Exhaustion
- Fuel system, line fitting › Loose
- Owner/pilot mechanic › Maintenance, inspection, inadequate
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The airplane traversed through a small stream, collided with a berm, and nosed over during a forced landing in a dry riverbed following a loss of engine power. Witnesses heard the airplane flying overhead before the crash and reported that the engine was sputtering. No fuel was found in the airplane's fuel tanks during recovery of the airplane from the accident site. During the engine examination, a B-nut for the carburetor fuel inlet line was discovered loose at its attach point. Fuel staining was evident on the fuel line fitting, the fuel line itself, and the airbox situated directly below the fuel line. An internal examination of the engine was conducted, with no obvious mechanical anomalies found. The B-nut was indexed so that it's position could be re established, then it was tightened to facilitate an engine ground run. The engine started and ran normally, both with and without the electric fuel pump, during the ground run. The B-nut was loosened to its original position. The electric boost pump was activated, with copious amount of fuel leaking out of the loose fuel line fitting.
Probable cause
A loss of engine power due to fuel exhaustion as a result of a loose B-nut fitting for the carburetor fuel inlet line, which allowed fuel to leak out.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX04LA038
- Event ID
- 20031126X01960
- Case number
- LAX04LA038
- 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: f1e87985918aa8e3c7e71d812ce183578a0f14c069d95f44a850efa9861cd58d; retrieved 2026-09-20T18:48:31.349Z.