# N91Z: Cessna 170B, registration cancelled 1971-03-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 10, 1971
- Status when cancelled: Valid registration
- Airframe: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306)
- Data sheets: [TCDS A-799](https://openairdocs.org/tcds/A-799) (OpenAirDocs)
- Serial number: 25645
- Type of aircraft: Fixed wing single engine
- Certificate issued: December 23, 1969
- Mode S code: AC9691
- Owner when cancelled: [Koch Albert Frederic](https://openairdocs.org/faa-owner/KOCH%20ALBERT%20FREDERIC)
- Location: [Cumberland, MD](https://openairdocs.org/faa-place/MD/Cumberland)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N91Z
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=91Z
- Page: https://openairdocs.org/deregistered/N91Z-1971-03-10

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 Cessna 170B: https://openairdocs.org/model/cessna-170b.md

## Other aircraft with N91Z

- [Cancelled 2018-08-18](https://openairdocs.org/deregistered/N91Z-2018-08-18): Bellanca 7GCBC, S/N 359-72, built 1972. Registration pending, canceled. Owner: [Childress, TX](https://openairdocs.org/faa-place/TX/Childress)

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