# N5726S: Schweizer SGS 2-33, registration cancelled 1975-05-08

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 8, 1975
- Status when cancelled: Valid registration
- Airframe: [Schweizer SGS 2-33](https://openairdocs.org/model/schweizer-sgs-2-33) (registry code 8051604)
- Data sheets: [TCDS G2EA](https://openairdocs.org/tcds/G2EA) (OpenAirDocs)
- Serial number: 70
- Type of aircraft: Glider
- Certificate issued: August 9, 1968
- Mode S code: A75912
- Owner when cancelled: [Calistoga Soaring Center](https://openairdocs.org/faa-owner/CALISTOGA%20SOARING%20CENTER)
- Location: [Calistoga, CA](https://openairdocs.org/faa-place/CA/Calistoga)
- Owner type: Partnership
- The mark today: https://openairdocs.org/aircraft/N5726S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5726S
- Page: https://openairdocs.org/deregistered/N5726S-1975-05-08

From the FAA registry file of November 4, 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 Schweizer SGS 2-33: https://openairdocs.org/model/schweizer-sgs-2-33.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 OAK69D0152](https://openairdocs.org/ntsb/OAK69D0152), Oct 6, 1968: Schweizer SGS233 (N5726S), Calistoga, CA, substantial damage

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