# N9100R: Sikorsky HO5-S1, registration cancelled 1963-12-20

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 20, 1963
- Status when cancelled: Valid registration
- Airframe: [Sikorsky HO5-S1](https://openairdocs.org/model/sikorsky-ho5-s1) (registry code 8141308)
- Data sheets: [TCDS 1H2](https://openairdocs.org/tcds/1H2) (OpenAirDocs)
- Serial number: 580078
- Type of aircraft: Rotorcraft
- Certificate issued: November 6, 1959
- Mode S code: AC9913
- Owner when cancelled: [University Of Oklahoma](https://openairdocs.org/faa-owner/UNIVERSITY%20OF%20OKLAHOMA)
- Location: [Norman, OK](https://openairdocs.org/faa-place/OK/Norman)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N9100R
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9100R
- Page: https://openairdocs.org/deregistered/N9100R-1963-12-20

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 Sikorsky HO5-S1: https://openairdocs.org/model/sikorsky-ho5-s1.md

## Other aircraft with N9100R

- [Cancelled 2006-06-09](https://openairdocs.org/deregistered/N9100R-2006-06-09): Cessna A188B, S/N 18802115T, built 1975. Exported to Bolivia. Owner: [Xxxx, OK](https://openairdocs.org/faa-place/OK/Xxxx)

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