# N9939D: Piper PA-18A, registration cancelled 1968-03-05

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 5, 1968
- Status when cancelled: Valid registration
- Airframe: [Piper PA-18A](https://openairdocs.org/model/piper-pa-18a) (registry code 7101804)
- Serial number: 18-6994
- Type of aircraft: Fixed wing single engine
- Certificate issued: July 19, 1960
- Mode S code: ADE15F
- Owner when cancelled: [Fairmont Flying Service Inc](https://openairdocs.org/faa-owner/FAIRMONT%20FLYING%20SERVICE%20INC)
- Location: [Fairmont, MN](https://openairdocs.org/faa-place/MN/Fairmont)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N9939D
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9939D
- Page: https://openairdocs.org/deregistered/N9939D-1968-03-05

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-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 MKC67A0016](https://openairdocs.org/ntsb/MKC67A0016), Aug 25, 1966: Piper PA-18A (N9939D), East Chain, MN, destroyed, 1 fatal

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