# N91313: 1947 Thorp T-211, registration cancelled 2014-11-24

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 24, 2014
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Thorp T-211](https://openairdocs.org/model/thorp-t-211) (registry code 8950104)
- Engine: [Lycoming 0-145B series](https://openairdocs.org/engine/lycoming-0-145b-series) (registry code 41502)
- Data sheets: [TCDS A-791](https://openairdocs.org/tcds/A-791), [TCDS TC 210](https://openairdocs.org/tcds/TC%20210) (OpenAirDocs)
- Serial number: 4
- Year built: 1947
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: July 2, 1965
- Certificate issued: December 21, 1992
- Last registry action: September 16, 2008
- Mode S code: ACA467
- Owner when cancelled: [Riddle Bob](https://openairdocs.org/faa-owner/RIDDLE%20BOB)
- Location: [Grass Valley, CA](https://openairdocs.org/faa-place/CA/Grass%20Valley)
- Owner type: Individual
- Owner's area on the map: 39.1007° N, 121.1342° W: Placed by OpenAirDocs at the center of ZIP code 95949, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N91313
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=91313
- Page: https://openairdocs.org/deregistered/N91313-2014-11-24

From the FAA registry file of November 3, 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 Thorp T-211: https://openairdocs.org/model/thorp-t-211.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 LAX00LA250](https://openairdocs.org/ntsb/LAX00LA250), Jul 4, 2000: Thorp T211 (N91313), Grass Valley, CA, substantial damage. Probable cause: the pilot encountered a mountain wave at an altitude too low to maintain clearance from trees.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20000704006629A](https://openairdocs.org/incident/20000704006629A), Jul 4, 2000: N91313, Grass Valley, CA, No damage. (-23) The pilot was conducting scenic flying with his son approx. 1000 AGL over in the area of alto sierra, CA. He noticed that the airplane was developing a…

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