CEN20LA342 · Siebel Auriga
Siebel Auriga · Accident en route
From Cottonwood Airport (1C8) to Cottonwood Airport (1C8)
Event
- NTSB case
- CEN20LA342
- 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
Siebel Auriga
- Aircraft type
- Siebel AURIGA
- 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
- N505JS
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Cottonwood Airport (1C8), Rockford, ILTo Cottonwood Airport (1C8), Rockford, IL
- Aircraft age
- About 18 years (built 2002)
- 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 · climb to cruise
- 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
- Unknown or undetermined
- 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
- Not determined › Not determined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot was conducting a local flight to evaluate recent modifications made to increase engine cooling when the engine “sputtered and quit” during cruise climb. The pilot was unable to restore engine power and made a forced landing at the departure airport. The airplane touched down about midfield on the wet turf runway and overran the end of the runway despite the pilot using maximum braking. The airplane traveled through the airport perimeter fence and onto a street where it was struck by an automobile. The airplane’s left wing and its rear spar attach point were substantially damaged during the accident.
Postaccident examination and engine test runs did not identify any anomalies or failures that would have resulted in a loss of engine power. The airplane had ample fuel available for the flight.
Although the auxiliary fuel pump output pressure was below the engine manufacturer’s minimum specification, no anomalies were identified with the engine-driven fuel pump during postaccident engine test runs. The reason for the total loss of engine power could not be determined with the available evidence.
Probable cause
The total loss of engine power for reasons that could not be determined based on available information.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN20LA342
- Event ID
- 20200814X44852
- Case number
- CEN20LA342
- 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, cause areas. 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: e51388a8bef0b29876b7c5429b41b3a99b1309e9f7148b819539b3d0872770af; retrieved 2026-09-16T12:34:08.238Z.