# N4663A: Irwin Thomas M SWISH II, registration cancelled 1999-10-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 29, 1999
- Status when cancelled: Triennial form not returned
- Airframe: [Irwin Thomas M SWISH II](https://openairdocs.org/model/irwin-thomas-m-swish-ii) (registry code 0563914)
- Serial number: 2
- Type of aircraft: Fixed wing single engine
- Certificate issued: February 3, 1984
- Last registry action: September 17, 1997
- Mode S code: A5B2A7
- Owner when cancelled: [Irwin Thomas M](https://openairdocs.org/faa-owner/IRWIN%20THOMAS%20M)
- Location: [Long Beach, CA](https://openairdocs.org/faa-place/CA/Long%20Beach)
- Owner type: Individual
- Owner's area on the map: 33.7542° N, 118.1324° W: Placed by OpenAirDocs at the center of ZIP code 90803, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4663A
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4663A
- Page: https://openairdocs.org/deregistered/N4663A-1999-10-29

From the FAA registry file of November 5, 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 Irwin Thomas M SWISH II: https://openairdocs.org/model/irwin-thomas-m-swish-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 LAX93LA005](https://openairdocs.org/ntsb/LAX93LA005), Oct 6, 1992: Swich II (N4663A), El Mirage, CA, destroyed, 1 fatal. Probable cause: THE PILOT/OWNER'S IMPROPER INSTALLATION OF THE VERTICAL STABILIZER. CONTRIBUTING TO THIS ACCIDENT WAS THE PILOT'S INTENTIONAL STALL, INADVERTENT SPIN, AND INABILITY TO RECOVER FROM THE SPIN DUE TO…

## 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 19921006041019A](https://openairdocs.org/incident/19921006041019A), Oct 6, 1992: Amtr SWICH11 (N4663A), El Mirage, CA, Destroyed, 1 fatal. Plummeted to ground in a spin while practicing maneuvers. First flight after installing new vertical stabilizer.

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