# N72SM: 1980 Weakley-Timothy SIERRA, registration cancelled 2013-05-07

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 7, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Weakley-Timothy SIERRA](https://openairdocs.org/model/weakley-timothy-sierra) (registry code 05647Y8)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Serial number: 001
- Year built: 1980
- Type of aircraft: Glider
- Engine type: None
- Airworthiness: Experimental, amateur built
- Airworthiness date: May 27, 1983
- Certificate issued: June 16, 1979
- Last registry action: October 19, 1991
- Mode S code: A9A2CF
- Owner when cancelled: [Weakley Tim L](https://openairdocs.org/faa-owner/WEAKLEY%20TIM%20L)
- Location: [Olympic Valley, CA](https://openairdocs.org/faa-place/CA/Olympic%20Valley)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N72SM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=72SM
- Page: https://openairdocs.org/deregistered/N72SM-2013-05-07

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 Weakley-Timothy SIERRA: https://openairdocs.org/model/weakley-timothy-sierra.md

## Other aircraft with N72SM

- [Registered now](https://openairdocs.org/aircraft/N72SM): Bombardier BD-100-1A10, S/N 20899

---
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.