# N39766: 1973 Aero Commander S2R, registration cancelled 1981-09-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 30, 1981
- Status when cancelled: Valid registration
- Airframe: [Aero Commander S2R](https://openairdocs.org/model/aero-commander-s2r) (registry code 0143022)
- Serial number: 1423R
- Year built: 1973
- Type of aircraft: Fixed wing single engine
- Certificate issued: February 12, 1976
- Mode S code: A4A013
- Owner when cancelled: [Kempf Randall](https://openairdocs.org/faa-owner/KEMPF%20RANDALL)
- Location: [Pierre, SD](https://openairdocs.org/faa-place/SD/Pierre)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N39766
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=39766
- Page: https://openairdocs.org/deregistered/N39766-1981-09-30

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 Aero Commander S2R: https://openairdocs.org/model/aero-commander-s2r.md

## NTSB investigations (2)

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 MKC79FTK14](https://openairdocs.org/ntsb/MKC79FTK14), May 22, 1979: Aero Comdr S2R (N39766), Vivian, SD, substantial damage
- [NTSB LAX78DUJ36](https://openairdocs.org/ntsb/LAX78DUJ36), Mar 7, 1978: Aero Comdr S-2R (N39766), Mesa, AZ, substantial damage

## FAA accident and incident reports (2)

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 19790522009999A](https://openairdocs.org/incident/19790522009999A), May 22, 1979: Ayres S2R (N39766), Vivian, SD, Substantial damage. Ag pilot misjudged rising terrain and flew into the ground.
- [Accident 19780307004959A](https://openairdocs.org/incident/19780307004959A), Mar 7, 1978: Ayres S2R (N39766), Mesa, AZ, Substantial damage

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