# N90ER: Christen Industries A-1, registration cancelled 1993-08-25

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 25, 1993
- Exported to: Botswana
- Status when cancelled: Valid registration
- Airframe: [Christen Industries A-1](https://openairdocs.org/model/christen-industries-a-1) (registry code 221020X)
- Data sheets: [TCDS A22NM](https://openairdocs.org/tcds/A22NM) (OpenAirDocs)
- Serial number: 1146
- Type of aircraft: Fixed wing single engine
- Certificate issued: May 20, 1991
- Last registry action: May 28, 1991
- Mode S code: AC6D47
- Owner when cancelled: [Mercantile Aviation Inc](https://openairdocs.org/faa-owner/MERCANTILE%20AVIATION%20INC)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.7452° N, 75.5937° W: Placed by OpenAirDocs at the center of ZIP code 19805, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N90ER
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=90ER
- Page: https://openairdocs.org/deregistered/N90ER-1993-08-25

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 Christen Industries A-1: https://openairdocs.org/model/christen-industries-a-1.md

## Other aircraft with N90ER

- [Registered now](https://openairdocs.org/aircraft/N90ER): Piper PA 46-350P, S/N 4636243, built 1999
- [Cancelled 1989-11-01](https://openairdocs.org/deregistered/N90ER-1989-11-01): Cessna 172, S/N 17276044. N-number assigned, not yet registered

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