# N185MD: 1997 Arns Matthew E SPACEWALKER II, registration cancelled 2007-09-05

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 5, 2007
- Status when cancelled: Valid registration
- Airframe: [Arns Matthew E SPACEWALKER II](https://openairdocs.org/model/arns-matthew-e-spacewalker-ii) (registry code 05602G6)
- Engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506)
- Data sheets: [TCDS E-229](https://openairdocs.org/tcds/E-229) (OpenAirDocs)
- Serial number: SW1996-1
- Year built: 1997
- Type of aircraft: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Experimental, amateur built
- Airworthiness date: April 9, 1997
- Certificate issued: December 15, 1995
- Last registry action: April 13, 2005
- Mode S code: A15456
- Owner when cancelled: [Arns Matthew E](https://openairdocs.org/faa-owner/ARNS%20MATTHEW%20E)
- Location: [Irvine, CA](https://openairdocs.org/faa-place/CA/Irvine)
- Owner type: Individual
- Owner's area on the map: 33.6925° N, 117.8312° W: Placed by OpenAirDocs at the center of ZIP code 92606, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N185MD
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=185MD
- Page: https://openairdocs.org/deregistered/N185MD-2007-09-05

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Arns Matthew E SPACEWALKER II: https://openairdocs.org/model/arns-matthew-e-spacewalker-ii.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX02LA249](https://openairdocs.org/ntsb/LAX02LA249), Aug 10, 2002: Arns Spacewalker II (N185MD), Irvine, CA, substantial damage. Probable cause: Loss of engine power due to an exhaust system leak and vapor lock.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20020810020029A](https://openairdocs.org/incident/20020810020029A), Aug 10, 2002: N185MD, Tustin, CA, No damage. (-23) After takeoff from chino airport and over irvine lake, the owner/operator indicated that the exhaust noise level seemed high, and when full power was…

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