# N4594A: Piper PA-18A, registration cancelled 1970-06-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 17, 1970
- Status when cancelled: Valid registration
- Airframe: [Piper PA-18A](https://openairdocs.org/model/piper-pa-18a) (registry code 7101804)
- Serial number: 18-4907
- Type of aircraft: Fixed wing single engine
- Certificate issued: December 11, 1967
- Mode S code: A59670
- Owner when cancelled: [Montana Aircraft Co](https://openairdocs.org/faa-owner/MONTANA%20AIRCRAFT%20CO)
- Location: [Billings, MT](https://openairdocs.org/faa-place/MT/Billings)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4594A
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4594A
- Page: https://openairdocs.org/deregistered/N4594A-1970-06-17

From the FAA registry file of November 4, 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 Piper PA-18A: https://openairdocs.org/model/piper-pa-18a.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DEN68D0194](https://openairdocs.org/ntsb/DEN68D0194), Dec 16, 1967: Piper PA-18A (N4594A), Gillette, WY, substantial damage

## Other aircraft with N4594A

- [Cancelled 1984-08-21](https://openairdocs.org/deregistered/N4594A-1984-08-21): Boeing 707-121, S/N 17589, built 1958. Owner: [E Systems Inc](https://openairdocs.org/faa-owner/E%20SYSTEMS%20INC), [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas)
- [Cancelled 1980-03-10](https://openairdocs.org/deregistered/N4594A-1980-03-10): Cessna A152, S/N A1520835, built 1978. Exported to United Kingdom. Owner: [Professional Aviation Corp](https://openairdocs.org/faa-owner/PROFESSIONAL%20AVIATION%20CORP), [Miami Springs, FL](https://openairdocs.org/faa-place/FL/Miami%20Springs)

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