# N4085Z: 1964 Piper PA-18-150, registration cancelled 1973-06-22

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 22, 1973
- Status when cancelled: Valid registration
- Airframe: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828)
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2) (OpenAirDocs)
- Serial number: 18-8100
- Year built: 1964
- Type of aircraft: Fixed wing single engine
- Certificate issued: May 19, 1966
- Mode S code: A4CD78
- Owner when cancelled: [Hopkins County Mosquito Control Dist](https://openairdocs.org/faa-owner/HOPKINS%20COUNTY%20MOSQUITO%20CONTROL%20DIST)
- Location: [Madisonville, KY](https://openairdocs.org/faa-place/KY/Madisonville)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N4085Z
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4085Z
- Page: https://openairdocs.org/deregistered/N4085Z-1973-06-22

From the FAA registry file of October 29, 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-18-150: https://openairdocs.org/model/piper-pa-18-150.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 CHI73FLQ06](https://openairdocs.org/ntsb/CHI73FLQ06), Aug 14, 1972: Piper PA-18 (N4085Z), Hanson, KY, destroyed, 1 fatal

## Other aircraft with N4085Z

- [Registered now](https://openairdocs.org/aircraft/N4085Z): Zipline International P2 ZIP, S/N 18735P2635
- [Cancelled 2004-03-06](https://openairdocs.org/deregistered/N4085Z-2004-03-06): Bell UH-1H, S/N 68-16083. Triennial form not returned. Owner: [Utah Valley State College](https://openairdocs.org/faa-owner/UTAH%20VALLEY%20STATE%20COLLEGE), [Orem, UT](https://openairdocs.org/faa-place/UT/Orem)
- [Cancelled 1989-09-26](https://openairdocs.org/deregistered/N4085Z-1989-09-26): Raven S55A, S/N S55A1001. Second triennial mailing, no response

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