# N4170: 1955 Mooney M-18C 55, registration cancelled 1971-07-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 14, 1971
- Status when cancelled: Valid registration
- Airframe: [Mooney M-18C 55](https://openairdocs.org/model/mooney-m-18c-55) (registry code 5870104)
- Data sheets: [TCDS A-803](https://openairdocs.org/tcds/A-803) (OpenAirDocs)
- Serial number: 335
- Year built: 1955
- Type of aircraft: Fixed wing single engine
- Certificate issued: May 20, 1964
- Mode S code: A4F079
- Owner when cancelled: [Dowdrick Gerald](https://openairdocs.org/faa-owner/DOWDRICK%20GERALD)
- Location: [Duncannon, PA](https://openairdocs.org/faa-place/PA/Duncannon)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N4170
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4170
- Page: https://openairdocs.org/deregistered/N4170-1971-07-14

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 Mooney M-18C 55: https://openairdocs.org/model/mooney-m-18c-55.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 NYC66A0147](https://openairdocs.org/ntsb/NYC66A0147), Jun 12, 1966: Mooney M-18C (N4170), Slate Run, PA, destroyed, 1 fatal

## Other aircraft with N4170

- [Registered now](https://openairdocs.org/aircraft/N4170): Beech A45, S/N G-270, built 1964
- [Cancelled 1928-07-02](https://openairdocs.org/deregistered/N4170-1928-07-02): Curtiss JN4D, S/N 116. Owner: [Beilby Jack](https://openairdocs.org/faa-owner/BEILBY%20JACK), [Sacramento, CA](https://openairdocs.org/faa-place/CA/Sacramento)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.