# N9571D: 1958 Piper PA-18, registration cancelled 1971-10-07

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 7, 1971
- Status when cancelled: Sale reported
- Airframe: [Piper PA-18](https://openairdocs.org/model/piper-pa-18) (registry code 7101802)
- Engine: [Continental C90 series](https://openairdocs.org/engine/continental-c90-series) (registry code 17009)
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2), [TCDS E-252](https://openairdocs.org/tcds/E-252) (OpenAirDocs)
- Serial number: 18-6753
- Year built: 1958
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Last registry action: January 14, 1977
- Mode S code: AD5127
- Location: [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City)
- Owner type: Individual
- Owner's area on the map: 35.4676° N, 97.5164° W: Placed by OpenAirDocs: center of Oklahoma City, OK, within about 14 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N9571D
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9571D
- Page: https://openairdocs.org/deregistered/N9571D-1971-10-07

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: https://openairdocs.org/model/piper-pa-18.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 FTW72AF011](https://openairdocs.org/ntsb/FTW72AF011), Aug 21, 1971: Piper PA-18 (N9571D), Broken Bow, OK, destroyed, 2 fatal

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