# N4591Y: 1957 Boeing 707-121, registration cancelled 1984-08-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 21, 1984
- Status when cancelled: Valid registration
- Airframe: [Boeing 707-121](https://openairdocs.org/model/boeing-707-121) (registry code 138360C)
- Data sheets: [TCDS 4A21](https://openairdocs.org/tcds/4A21) (OpenAirDocs)
- Serial number: 17591
- Year built: 1957
- Type of aircraft: Fixed wing multi engine
- Certificate issued: August 14, 1984
- Mode S code: A5961D
- Owner when cancelled: [E Systems Inc](https://openairdocs.org/faa-owner/E%20SYSTEMS%20INC)
- Location: [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4591Y
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4591Y
- Page: https://openairdocs.org/deregistered/N4591Y-1984-08-21

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 Boeing 707-121: https://openairdocs.org/model/boeing-707-121.md

## Other aircraft with N4591Y

- [Cancelled 1981-01-19](https://openairdocs.org/deregistered/N4591Y-1981-01-19): Cessna T210N, S/N 21063956. Exported to Mexico. Owner: [Del Rio Flying Service](https://openairdocs.org/faa-owner/DEL%20RIO%20FLYING%20SERVICE), [Del Rio, TX](https://openairdocs.org/faa-place/TX/Del%20Rio)
- [Cancelled 1975-06-23](https://openairdocs.org/deregistered/N4591Y-1975-06-23): Piper PA-25-235, S/N 25-4272, built 1967. Exported to Canada. Owner: [Hensley Flying Service Inc](https://openairdocs.org/faa-owner/HENSLEY%20FLYING%20SERVICE%20INC), [Harve, MT](https://openairdocs.org/faa-place/MT/Harve)

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