# N4021Z: Piper PA-18-150, registration cancelled 1970-12-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 29, 1970
- Status when cancelled: Valid registration
- Airframe: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828)
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2) (OpenAirDocs)
- Serial number: 18-7973
- Type of aircraft: Fixed wing single engine
- Certificate issued: August 16, 1963
- Mode S code: A4B6A2
- Owner when cancelled: [Alder George B](https://openairdocs.org/faa-owner/ALDER%20GEORGE%20B)
- Location: [Chattanooga, TN](https://openairdocs.org/faa-place/TN/Chattanooga)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N4021Z
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4021Z
- Page: https://openairdocs.org/deregistered/N4021Z-1970-12-29

From the FAA registry file of November 7, 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 Piper PA-18-150: https://openairdocs.org/model/piper-pa-18-150.md

## Other aircraft with N4021Z

- [Cancelled 2021-06-05](https://openairdocs.org/deregistered/N4021Z-2021-06-05): Andrew Philip Richardson DBA A55S, S/N 258. Registration expired, pending cancellation. Owner: [Richardson Andrew P](https://openairdocs.org/faa-owner/RICHARDSON%20ANDREW%20P), [Albuquerque, NM](https://openairdocs.org/faa-place/NM/Albuquerque)
- [Cancelled 1997-02-06](https://openairdocs.org/deregistered/N4021Z-1997-02-06): Ayres S2R-T34, S/N T34028. Owner: [Davis Perry L](https://openairdocs.org/faa-owner/DAVIS%20PERRY%20L), [Moses Lake, WA](https://openairdocs.org/faa-place/WA/Moses%20Lake)

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