# N21Z: Smith Mini-Plane DSA-1, registration cancelled 1965-08-31

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 31, 1965
- Status when cancelled: Valid registration
- Airframe: [Smith Mini-Plane DSA-1](https://openairdocs.org/model/smith-mini-plane-dsa-1) (registry code 056354B)
- Serial number: S&H 1
- Type of aircraft: Fixed wing single engine
- Certificate issued: August 22, 1962
- Mode S code: A1B968
- Owner when cancelled: [Singer Robert B](https://openairdocs.org/faa-owner/SINGER%20ROBERT%20B)
- Location: [Galesburg, IL](https://openairdocs.org/faa-place/IL/Galesburg)
- Owner type: Co-owned
- The mark today: https://openairdocs.org/aircraft/N21Z
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21Z
- Page: https://openairdocs.org/deregistered/N21Z-1965-08-31

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 Smith Mini-Plane DSA-1: https://openairdocs.org/model/smith-mini-plane-dsa-1.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 CHI66F0095](https://openairdocs.org/ntsb/CHI66F0095), Jul 11, 1965: Smith Mini DSA-1 (N21Z), Macomb, IL, destroyed, 1 fatal

## Other aircraft with N21Z

- [Cancelled 2022-06-04](https://openairdocs.org/deregistered/N21Z-2022-06-04): Mcfarland COUGAR, S/N LCM-1, built 1979. Registration expired, pending cancellation. Owner: [Johnson James B](https://openairdocs.org/faa-owner/JOHNSON%20JAMES%20B), [Backus, MN](https://openairdocs.org/faa-place/MN/Backus)

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