# N21K: 1942 Boeing 1B75A, registration cancelled 1971-03-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 10, 1971
- Status when cancelled: Valid registration
- Airframe: [Boeing 1B75A](https://openairdocs.org/model/boeing-1b75a) (registry code 1380550)
- Serial number: 75-4275
- Year built: 1942
- Type of aircraft: Fixed wing single engine
- Certificate issued: September 9, 1961
- Mode S code: A1B80A
- Owner when cancelled: [King R E](https://openairdocs.org/faa-owner/KING%20R%20E)
- Location: [Delray Beach, FL](https://openairdocs.org/faa-place/FL/Delray%20Beach)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N21K
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21K
- Page: https://openairdocs.org/deregistered/N21K-1971-03-10

From the FAA registry file of November 3, 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 Boeing 1B75A: https://openairdocs.org/model/boeing-1b75a.md

## Other aircraft with N21K

- [Registered now](https://openairdocs.org/aircraft/N21K): Kyle Howard C LONG EZ, S/N 544

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