# N4663A: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: October 29, 1999
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4663A
- Page: https://openairdocs.org/aircraft/N4663A

## Aircraft that carried N4663A

- [Cancelled 1999-10-29](https://openairdocs.org/deregistered/N4663A-1999-10-29): Irwin Thomas M SWISH II, S/N 2. Triennial form not returned. Owner: [Irwin Thomas M](https://openairdocs.org/faa-owner/IRWIN%20THOMAS%20M), [Long Beach, CA](https://openairdocs.org/faa-place/CA/Long%20Beach)

## NTSB investigations on N4663A (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 on N4663A (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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