# N9956Q: 1955 Piper PA-18-135 (L-21B), registration cancelled 1977-07-19

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 19, 1977
- Exported to: Canada
- Status when cancelled: Valid registration
- Airframe: [Piper PA-18-135 (L-21B)](https://openairdocs.org/model/piper-pa-18-135-l-21b) (registry code 7101821)
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2) (OpenAirDocs)
- Serial number: 18-3927
- Year built: 1955
- Type of aircraft: Fixed wing single engine
- Certificate issued: October 21, 1976
- Mode S code: ADE86F
- Owner when cancelled: [Shawano Flying Service Inc](https://openairdocs.org/faa-owner/SHAWANO%20FLYING%20SERVICE%20INC)
- Location: [Shawano, WI](https://openairdocs.org/faa-place/WI/Shawano)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N9956Q
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9956Q
- Page: https://openairdocs.org/deregistered/N9956Q-1977-07-19

From the FAA registry file of November 5, 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-18-135 (L-21B): https://openairdocs.org/model/piper-pa-18-135-l-21b.md

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