# N21RG: Grimm KR-1, registration cancelled 1988-09-09

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 9, 1988
- Status when cancelled: Triennial form not returned
- Airframe: [Grimm KR-1](https://openairdocs.org/model/grimm-kr-1) (registry code 0564874)
- Serial number: M526
- Type of aircraft: Fixed wing single engine
- Mode S code: A1B8A7
- The mark today: https://openairdocs.org/aircraft/N21RG
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21RG
- Page: https://openairdocs.org/deregistered/N21RG-1988-09-09

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 Grimm KR-1: https://openairdocs.org/model/grimm-kr-1.md

## Other aircraft with N21RG

- [Registered now](https://openairdocs.org/aircraft/N21RG): Cessna T207, S/N 20700066, built 1969

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