# N4056A: Piper PA-18-125, registration cancelled 1970-06-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 30, 1970
- Status when cancelled: Valid registration
- Airframe: [Piper PA-18-125](https://openairdocs.org/model/piper-pa-18-125) (registry code 7101812)
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2) (OpenAirDocs)
- Serial number: 18-863
- Type of aircraft: Fixed wing single engine
- Certificate issued: October 23, 1957
- Mode S code: A4C25F
- Owner when cancelled: [Usaac Quartermaster](https://openairdocs.org/faa-owner/USAAC%20QUARTERMASTER)
- Location: [Fort Knox, KY](https://openairdocs.org/faa-place/KY/Fort%20Knox)
- Owner type: Government
- The mark today: https://openairdocs.org/aircraft/N4056A
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4056A
- Page: https://openairdocs.org/deregistered/N4056A-1970-06-30

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-18-125: https://openairdocs.org/model/piper-pa-18-125.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 UNK65X0302](https://openairdocs.org/ntsb/UNK65X0302), Oct 17, 1964: Piper PA18 (N4056A), Ft Knox, KY, substantial damage

## Other aircraft with N4056A

- [Cancelled 2018-02-14](https://openairdocs.org/deregistered/N4056A-2018-02-14): Balloon Works FIREFLY 7, S/N 10106, built 1981. Registration expired, pending cancellation. Owner: [Chillicothe Cloud Chasers Inc](https://openairdocs.org/faa-owner/CHILLICOTHE%20CLOUD%20CHASERS%20INC), [Chillicothe, MO](https://openairdocs.org/faa-place/MO/Chillicothe)

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