# N4216X: Rockwell International S-2R, registration cancelled 2000-03-23

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 23, 2000
- Status when cancelled: Triennial form not returned
- Airframe: [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r) (registry code 7630202)
- Serial number: 1973R
- Type of aircraft: Fixed wing single engine
- Certificate issued: September 8, 1977
- Last registry action: December 17, 1997
- Mode S code: A50296
- Owner when cancelled: [Caldwell Robert B](https://openairdocs.org/faa-owner/CALDWELL%20ROBERT%20B)
- Location: [Williams, CA](https://openairdocs.org/faa-place/CA/Williams)
- Owner type: Individual
- Owner's area on the map: 39.1036° N, 122.2470° W: Placed by OpenAirDocs at the center of ZIP code 95987, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4216X
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4216X
- Page: https://openairdocs.org/deregistered/N4216X-2000-03-23

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 Rockwell International S-2R: https://openairdocs.org/model/rockwell-international-s-2r.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 LAX87DVG06](https://openairdocs.org/ntsb/LAX87DVG06), May 6, 1987: Ayres S-2R (N4216X), Williams, CA, substantial damage

## 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 19870505012349A](https://openairdocs.org/incident/19870505012349A), May 5, 1987: Ayres S2RRESTD (N4216X), Williams, CA, Substantial damage. Engine malfunction on climbout. Stalled. Struck the ground. Hit a levee. Flipped over on its back.

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