# N4173X: 1974 Rockwell International S-2R, registration cancelled 1976-11-19

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 19, 1976
- Status when cancelled: Valid registration
- Airframe: [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r) (registry code 7630202)
- Serial number: 1942R
- Year built: 1974
- Type of aircraft: Fixed wing single engine
- Certificate issued: March 9, 1976
- Mode S code: A4F0F8
- Owner when cancelled: [Pugh City Flying Service Inc](https://openairdocs.org/faa-owner/PUGH%20CITY%20FLYING%20SERVICE%20INC)
- Location: [Swiftown, MS](https://openairdocs.org/faa-place/MS/Swiftown)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4173X
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4173X
- Page: https://openairdocs.org/deregistered/N4173X-1976-11-19

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 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 MIA77FKQ02](https://openairdocs.org/ntsb/MIA77FKQ02), Oct 4, 1976: Aero Comdr 600S2R (N4173X), Swiftown, MS, destroyed

## 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 19761004031199A](https://openairdocs.org/incident/19761004031199A), Oct 4, 1976: Ayres S2B (N4173X), Swiftown, MS, Destroyed. Pwr rdcd when 100 ft alt reached not when cruising speed attained.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.